TW201137841A - Driving method for image display apparatus and driving method for image display apparatus assembly - Google Patents

Abstract

Disclosed herein is a driving method for an image display apparatus which includes an image display panel and a signal processing section. Each of the pixels includes a first subpixel for displaying a first primary color, a second subpixel for displaying a second primary color, a third subpixel for displaying a third primary color and a fourth subpixel for displaying a fourth color. The signal processing section is capable of calculating a first subpixel output signal, a second subpixel output signal, and a third subpixel output signal. The driving method includes the step, further carried out by the signal processing section, of calculating a fourth subpixel output signal based on a fourth subpixel control second signal and a fourth subpixel control first signal, and outputting the calculated fourth subpixel output signal to the fourth subpixel of the (p, q) th pixel.

Description

201137841 VI. Description of the Invention: [Technical Field] The present invention relates to a driving method of an image display device and a driving method of a combination of image display devices. [Prior Art] In recent years, an image display device such as a color liquid crystal display device has a problem of an increase in power consumption involving performance improvement. In particular, for example, in the color liquid crystal display device, the resolution is improved, the color reproduction range is increased, and the luminance advancement is increased, and the power consumption of the backlight is increased. A device for solving the above problem has been noticed. The device has four sub-pixel configurations including 'except for displaying red display sub-pixels in red, green display sub-pixels in green, and blue in blue. Displaying the sub-pixels of the three sub-pixels', for example, displaying a white white display sub-pixel. White displays sub-pictures to enhance brightness. Since the four sub-pixel configurations can achieve high luminance similar to the power consumption of the display device in the related art, if the luminance is equal to that of the related art, the power consumption of the backlight can be reduced and the display quality can be expected to be improved. . For example, a color image display device disclosed in Japanese Patent No. 3 1 6702 6 (hereinafter referred to as Patent Document 1) includes: a mechanism for generating three different color signals from an input signal using an additive primary color program; and a mechanism, Adding a color signal of the three-color phase in an equal ratio to generate an auxiliary signal, and supplying a total of four display signals including the auxiliary signal and three different color signals obtained by subtracting the auxiliary signal from the three-phase signal to the -5,378,384,41 auxiliary signal to Display unit. It is noted that the three different color signals drive the red display sub-pixel, the green display sub-pixel, and the blue display sub-pixel, while the auxiliary signal drives the white display sub-pixel. Meanwhile, Japanese Patent No. 3 8 0 5 1 5 0 (hereinafter referred to as Patent Document 2) discloses a liquid crystal display device including a liquid crystal panel in which a red output sub-pixel, a green output sub-pixel, and a blue output sub-picture The prime and the luminance sub-pixel form a main pixel unit for color display, comprising: a computing mechanism to use a red input sub-pixel obtained from an input image signal, a green input sub-pixel, and a blue input sub-picture The digits 値Ri, Gi, and Bi of the prime are used to calculate the digits of the driving luminance sub-pixels and the digits of the red input sub-pixels, the green input sub-pixels, and the blue input sub-pixels, Ro, Go, and Bo; The computing organization calculates the number of digits 値R〇, Go, and Bo and W to satisfy the following relationship

Ri: Gi: Bi = (Ro + W): (Go + W): (Bo + W) and thereby adding from the red input sub-pixel, the green input sub-pixel, and The enhancement of the brightness of the configuration of the blue input sub-pixel. Further, PCT/KR 2004/000659 (hereinafter referred to as Patent Document 3) discloses a liquid crystal display device including a respective configuration of a red display sub-pixel, a green display sub-pixel, and a blue display sub-pixel. One pixel and each -6- 201137841 Do not configure the red display sub-pixel 'green display sub-pixel, and white display sub-pixel first pixel' and in which the first and the first are arranged alternately in the first direction The two pixels also alternately arrange the first and second pixels in the second direction. Patent Document 3 further discloses a liquid crystal display device in which first and second pixels are alternately arranged in a first direction. Meanwhile, in the second direction, first pixels are arranged adjacent to each other and second images are arranged adjacent to each other. Prime. SUMMARY OF THE INVENTION Incidentally, in the apparatus disclosed in Patent Document 1 and Patent Document 2, one pixel must be configured from four sub-pixels. This reduces the area of the aperture area of the red display sub-pixel or red output sub-pixel, the green display sub-pixel or the green output sub-pixel, and the blue display sub-pixel or blue output sub-pixel to cause the aperture area to pass through The reduction in the maximum amount of light transmitted. Therefore, there is a case where the white display sub-pixel or the luminance sub-pixel is additionally provided, but the desired luminance of the entire pixel cannot be increased. Meanwhile, in the device disclosed in Patent Document 3, the second pixel includes a white display sub-pixel that replaces the blue display sub-pixel. Further, the output signal to the white display sub-pixel is an output signal of the blue display sub-pixel which is assumed to exist before the substitution of the sub-pixel is displayed in white. Therefore, the optimization of the output signals to the blue display sub-pixels constituting the first pixel and the white display sub-pixels constituting the second pixel cannot be realized. In addition, due to color variation or luminance variation, there is also a problem that the picture quality is significantly deteriorated. Therefore, it is desirable to provide a driving method of an image display device that can optimize an output signal to an individual sub-pixel and can positively achieve an increase in luminance of 201137841, and an image display including the image display device of the foregoing type The driving method of the device combination. According to an embodiment of the present invention, a method for driving an image display device is provided. The image display device includes an image display panel, wherein a total of P〇XQ pixels are arranged in a two-dimensional matrix, including P arranged in the first direction. a pixel and a Q〇 pixel arranged in the second direction, and a signal processing area; each of the pixels includes a first sub-pixel displaying the first primary color and a second sub-picture displaying the second primary color And displaying a third sub-pixel of the third primary color and a fourth sub-pixel displaying the fourth color; the signal processing area can: calculate the pixels according to the first sub-pixel input signal to the pixel a first sub-pixel output signal of each of the two, and outputting the first sub-pixel output signal to the first sub-pixel; calculating to the pixel according to the second sub-pixel input signal to the pixel a second sub-pixel output signal, and outputting the second sub-pixel output signal to the second sub-pixel; and calculating a third sub-single of the pixel according to the third sub-pixel input signal to the pixel Outputs a signal and outputs the third sub-pixel And outputting a signal to the third sub-pixel, the driving method comprising the following steps further performed by the signal processing area: according to the (p, q)th drawing from the to the second direction of counting the pixels a first subpixel input signal, the second subpixel input signal, and the time p is 1, 2, ..., P〇 and q is 1, 2, ..., Q〇

S 201137841 The fourth sub-pixel input signal calculates a fourth sub-pixel control second signal and the neighboring pixels located next to the (p, q)th pixel along the second direction The fourth sub-pixel input signal, the second sub-pixel input signal, and the fourth sub-pixel input signal calculated by the third sub-pixel input signal control the first signal to calculate a fourth sub-pixel output signal, and output The calculated fourth subpixel output signal to the fourth subpixel of the (p, q)th pixel. According to an embodiment of the invention, a method for driving an image display device is provided. The image display device includes an image display panel, wherein a total of PXQ pixel groups are arranged in a two-dimensional matrix, including P pictures arranged in the first direction. a group of primes and a group of Q pixels arranged in a second direction, and a signal processing area; each of the groups of pixels from the first pixel and the second pixel along the first direction Configuring; the first pixel includes a first sub-pixel displaying a first primary color, a second sub-pixel displaying a second primary color, and a third sub-pixel displaying a third primary color; the second pixel includes displaying the a first sub-pixel of the first primary color, a second sub-pixel displaying the second primary color, and a fourth sub-picture displaying the fourth color, wherein the signal processing area can: at least depend on the first pixel The first subpixel input signal is calculated to the first subpixel output signal of the first pixel, and outputs the first subpixel output signal to the first subpixel of the first pixel; The second subpixel input signal of the first pixel is calculated to a second sub-pixel output signal of a pixel, and outputting the second sub-pixel -9- ϋ 201137841 output signal to the second sub-pixel of the first pixel; at least according to the second pixel The first subpixel inputs a first sub-pixel output signal of the second pixel, and outputs the output signal to the first sub-pixel of the second pixel; and at least according to the second pixel a second subpixel inputs a second subpixel output signal of the second pixel, and outputs the output signal to the second subpixel of the second pixel; the driving method includes further steps by the signal processing region : the first sub-pixel input signal, the first sub-pixel input signal, wherein P is 1, 2, ..., P, and q is 1, according to when counting the pixels along the second direction The second subpixel input is calculated by the fourth subpixel input signal and the first subpixel controlled from the second (p, q) neighboring pixels in the second direction The fourth sub-picture signal calculated by the input signal, the second sub-picture, and the third sub-pixel input signal is used to calculate the fourth sub-picture Outputting a signal, and outputting the pixel output signal to the (P, q)th second pixel; and further based at least on the (p, q)th second pixel pixel input signal and to the ( p, q) the input signal of the first pixel to calculate a third sub-pixel output signal, and output the prime output signal to the third sub-pixel. According to an embodiment of the present invention, a video display signal is calculated until the first sub-pixel signal is calculated to the second sub-pixel (P, q 2, . . . , Q, the signal, and the second signal) Controlling the third sub-third sub-pixel of the fourth sub-fourth pixel of the first calculation by the phase input semaphore adjacent to the pixel, the third sub-picture device combination

The driving method of S-10-201137841, the image display device combination comprises: (A) an image display device comprising an image display panel, wherein a total of P〇X Qo pixels are arranged in a two-dimensional matrix, including in the first direction Arranged Po pixels and Qo pixels arranged in the second direction, and signal processing area! And (B) a planar light source device for illuminating the image display device from the rear side; each of the pixels includes a first sub-pixel displaying the first primary color and a second sub-pixel displaying the second primary color And displaying a third sub-pixel of the third primary color and displaying a fourth sub-pixel of the fourth color; the signal processing area can: calculate the pixels to the pixels according to the first sub-pixel input signal to the pixel a first sub-pixel output signal of each of the first sub-pixel output signals to the first sub-pixel; and a second sub-pixel input signal to the pixel is calculated to the pixel a second sub-pixel output signal, and outputting the second sub-pixel output signal to the second sub-pixel; and calculating a third sub-pixel to the pixel according to the third sub-pixel input signal to the pixel Outputting a signal and outputting the third sub-pixel output signal to the third sub-pixel, the driving method comprising the following steps further performed by the signal processing area: counting from the to the second direction The first (P, q) pixel of the prime time, where P is 1, 2 ..., P〇 and q are 1, 2, ..., Q〇, -11 - 201137841, the first sub-pixel input signal, the second sub-pixel input signal, and the third sub-pixel input signal are calculated The fourth sub-pixel controls the second signal and the first sub-pixel input signal from the adjacent pixels positioned next to the (p, q)th pixel along the second direction, the second a sub-pixel input signal and a fourth sub-pixel control first signal calculated by the third sub-pixel input signal to calculate a fourth sub-pixel output signal, and output the calculated fourth sub-pixel output signal to The fourth sub-pixel of the (p, q)th pixel. According to an embodiment of the present invention, a driving method of a combination of image display devices is provided. The image display device combination includes: (A) an image display device including an image display panel, wherein a total of PXQ pixel groups are arranged in a two-dimensional matrix The P pixel group arranged in the first direction and the Q pixel group arranged in the second direction, and the signal processing area; and (B) the planar light source device for illuminating the light from the rear side Image display device: each group of the pixel groups is configured from a first pixel and a second pixel along the first direction; the first pixel includes a first sub-picture showing a first primary color a second sub-pixel that displays the second primary color, and a third sub-pixel that displays the third primary color; the second pixel includes a first sub-pixel that displays the first primary color, and a second sub-pixel that displays the second primary color The sub-pixel' and the fourth color of the fourth color of the signal processing area can: calculate at least according to the first sub-pixel input signal to the first pixel to

S -12- 201137841 The first sub-pixel of the first pixel outputs a signal, and outputs the first sub-pixel output signal to the first sub-pixel of the first pixel; at least according to the first picture The second sub-pixel input signal of the element is calculated to the second sub-pixel output signal of the first pixel, and outputs the second sub-pixel output signal to the second sub-pixel of the first pixel; Calculating a first sub-pixel output signal to the second pixel according to the first sub-pixel input signal to the second pixel, and outputting the first sub-pixel output signal to the second pixel a sub-pixel; and calculating a second sub-pixel output signal to the second pixel based on at least the second sub-pixel input signal to the second pixel, and outputting the second sub-pixel output signal to the The second sub-pixel of the second pixel: the driving method includes the following steps further performed by the signal processing region: according to the (p, q) when counting the pixels along the second direction a second pixel, wherein P is 1, 2, ..., P and q is 1, 2, ..., Q, the first sub-pixel input The fourth sub-pixel control second signal calculated by the input signal, the second sub-pixel input signal, and the third sub-pixel input signal is located at the first (p, q) along the second direction The first sub-pixel input signal of the adjacent pixel next to the pixel, the second sub-pixel input signal, and the fourth sub-pixel input control signal calculated by the third sub-pixel input signal Calculating a fourth sub-pixel output signal, and outputting the calculated fourth sub-pixel output signal to the fourth sub-pixel of the (p, q)th second pixel; and further according to at least p, q) the third sub- 13-201137841 pixel input signal and the third sub-pixel input signal to the (p, q)th first pixel to calculate the third sub-pixel Outputting a signal 'and outputting the third sub-pixel output signal to the third sub-pixel. The driving method of the image display device according to the first embodiment of the present invention and the driving method of the image display device combination are based on the input signals to the (p, q)th pixel and to the second direction (the second direction) p, q) The input signal of the pixel next to the pixel is judged to the fourth sub-pixel output signal of the (P, q)th pixel. In other words, the fourth sub-pixel output signal to the particular element is also determined based on the input signal to the pixel positioned next to a particular pixel. Therefore, further optimization of the output signal up to the fourth sub-pixel is expected. In addition, since the fourth sub-pixel is set, the increase in luminance can be surely realized and the improvement of the display quality can be expected. The driving method of the image display device and the combination of the image display device according to the second embodiment of the present invention are driven. The method determines, according to an input signal to the (P, q)th second pixel and an input signal to a pixel positioned next to the (P, q)th second pixel in the second direction, to (P, q) The fourth sub-pixel output signal of the second pixel. In other words, determining to configure a particular pixel group based not only on the input signal to the second pixel configuring a particular pixel group, but also on the input signal to the pixel positioned next to the particular second pixel. The fourth sub-pixel output signal of the particular second pixel of the group. Therefore, further optimization of the output signal up to the fourth sub-pixel is expected. In addition, since a fourth sub-pixel is set in the pixel group configured from the first and second pixels, the area reduction of the aperture area of the sub-pixel can be suppressed. As a result, the increase in luminance can be surely achieved and an improvement in display quality can be expected.

The above and other objects, features, and advantages of the present invention will be apparent from the description and appended claims. . [Embodiment] Hereinafter, the present invention will be described with respect to preferred embodiments of the invention. However, the present invention is not limited to the embodiments, and various numbers, materials, and the like described in the description of the embodiments are merely illustrative. Note that the instructions are presented in the following order. 1. Description of the driving method of the image display device according to the first or second embodiment of the present invention and the driving method of the combination of the image display device 2. Possible Example 1 (The image display device according to the first embodiment of the present invention Driving method and driving method of image display device combination, 1A mode) 3. Feasible example 2 (Modification of feasible example 1, 1st A mode) 4. Feasible example 3 (Modification of feasible example 2) 5 _ Feasible example 4 (Another modification of the feasible example 2) 6. Possible example 5 (Driving method of image display and driving method of image display device combination according to the second embodiment of the present invention, 2A mode) 7. Possible example 6 ( Modification of the possible example 2, the 2B mode), and other methods of driving the image display device of the first or second embodiment of the present invention and the driving method of the image display device combination -15-201137841 The driving method of the first embodiment of the invention can be configured in the following manner. In particular, regarding the (p, q)th pixel, the first sub-pixel input signal having the signal of (15, q) has a second sub-pixel of χ2-(Ρ, q> The input signal and the third sub-pixel input signal having a signal of χ3-(Ρ, q> are input to the signal processing area. In addition, the signal processing area outputs, regarding the (P, q) pixels, the judgment The first sub-pixel output signal of the signal 値 of the display gradation of the sub-pixel, and the second sub-picture of the signal level Χ2-(Ρ, ^ of the display level of the second sub-pixel is determined. The output signal, the third sub-pixel output signal of the signal having the X3.(P, q) of the display level of the third sub-pixel, and the display level of the fourth sub-pixel having the X4. (P , q) the fourth sub-pixel output signal of the signal 。. In addition, regarding the adjacent pixel positioned next to the (p, q)th pixel, the first sub-signal with χ, .ίρ, Ο a pixel input signal, a second sub-pixel input signal having a signal of X2. (P, CT), and a third sub-pixel having a signal of X3-(P, q.) The input signal is input to the signal processing area. In addition, the 'signal processing area output' determines the display level of the first sub-pixel with respect to the adjacent pixel, and has the first sub-pixel output of the signal 値signal,

S -16- 201137841 Judging the display level of the second sub-pixel has a second sub-pixel output signal of Χ2·(ρ,〇 signal ,, and determining that the display level of the third sub-pixel has Χ3·(ρ, a third sub-pixel output signal of the signal C of C and a fourth sub-pixel output signal having a signal level of Χ4·(Ρ, 〇 of the fourth sub-pixel is displayed. Meanwhile, according to the present invention The driving method of the second embodiment can be configured in the following manner. In particular, regarding the configuration of the first pixel of the (p, q) pixel group, the first sub-pixel having the signal of XHp, . The input signal 'the second sub-pixel input signal ' having the signal χ2·(ρ,q) 以及 and the third sub-pixel input signal having the signal X of X3-(p,q) are input to the signal processing area, And a second pixel for configuring the (p, q)th pixel group, the first subpixel input signal having a signal of χι-(Ρ, q).2 has χ2-(ρ, q The second subpixel input signal of the signal of .2 and the third subpixel input signal of the signal of X3.(P,q) .2 are input to No. Processing area. In addition, regarding the first pixel of the configuration (P, q) pixel group, the signal processing area outputs a signal having χ^ρ, ^^ indicating the display level of the first sub-pixel. The first sub-pixel output signal 'determines the display level of the second sub-pixel with the signal of X2. (p, q) ^, the second sub-halogen output signal, and -17-201137841 determines the third sub-picture The display level of the third sub-pixel output signal with χ3·(Ρ, ^ signal 。. In addition, regarding the second pixel of the configuration (P, q) pixel group, signal processing area output Determining the first sub-pixel output signal of the signal of X HP, cn-2 of the display level of the first sub-pixel, and determining that the display level of the second sub-pixel has X2.(p, q) .2 The second sub-pixel output signal of the signal ,, and the fourth sub-pixel output signal of the signal X having the display level of the fourth sub-pixel is determined to be X4. (P, «〇-2 signal 。. (P, q) adjacent pixels next to the second pixel, having the first sub-pixel input signal of X1. (p, signal ,, having X 2. (p, cn letter) The second sub-pixel input signal and the third sub-pixel input signal having the signal of X3-(p, q_) are input to the signal processing area. Here, Max(p, q) is defined in the following manner , Min(p, q), Max(p, , Min(p,q).i, Max(p,q)-2, Min(p, q).2, Max(p, q.), and Min (p, q.) In addition, the terms "input signal" and "output signal" sometimes refer to the signal itself and sometimes to the luminance of the signal.

Max(p, q): to the (p, q)th pixel including the first subpixel input signal 値Xidp, q), the second subpixel input signal 値χ2·(ρ, q), the third Subpixel input signal 値X3.(p,...the maximum of the three subpixel input signals 値

S -18- 201137841

Min(p, q): to the (P, q)th pixel including the first sub-input signal 値) U-(P, <0, the second sub-pixel input signal 値x2-(p, q ) 'Subpixel input signal 値Χ3·(ρ, q) The minimum of three subpixel input signals 値

Max(p,q).i. to the younger (p, q) first pixels including the first element input signal 値q)-!, the second sub-pixel input signal 値X2_(|, the third sub-picture The maximum value of the three subpixel inputs 値 of the prime input signal 値x3.(p, q) ·,

Miiihqn. to the table (p, q) first-pixel includes the first element input signal 値x, - (p, the second sub-pixel input signal 値X2_n, the third sub-pixel input signal 値 three sub-pixels The minimum number of pixels input 値

Max(P,q)-2: to the (p,q)th second pixel including the first prime input signal 値Xb(p,q)·2, the second subpixel input signal 値X2_( ,, The three subpixels of the three subpixel input signal 値Χ3·(ρ,q)_2 are the largest of the three subpixels.

Mln(P,q)-2: to the (p, q)th second pixel including the first element input signal 値X1_(p, q> 2, the second sub-pixel input signal 値X2 (, The minimum of the three subpixel inputs of the two subpixel input signal 値X3 (p,q)_2

MaX(P, q.): to the (p, q)th pixel or the (nth pixel adjacent to the second pixel) including the first sub-pixel input signal 1-(Ρ' q '), the first sub-pixel input signal 値 (1), q,), the third sub-input signal 値X3_ (p, 最 the three sub-pixel input signals 値 the most Draw?, q) · 1. Signal • Sub-picture p, q) -1. Signal • Sub-picture p> q)-2. Signal-sub-picture p. q)-2. Signal, q) No. T値-19- 201137841

Min(p,q,): to the adjacent pixel adjacent to the (p, q)th pixel or the (p, q)th second pixel, including the first subpixel input signal 値xMp, d, the second subpixel input signal 値x2. (p, q,), the third subpixel input signal 値x3-(P, q.) of the three subpixel input signals 値 minimum 値. Note that adjacent pixels positioned at the (p, q)th pixel or adjacent pixels positioned next to the (P,q)th second pixel may be the (p,q-Ι)th picture. The prime, or may be the (P, q + Ι) pixels, or the (P, q-Ι) pixels and the (P, q + Ι) pixels. The driving method according to the first embodiment of the present invention may have a mode in which the fourth sub-pixel is controlled according to Min(p, q> to control the second signal 値 SG2-(p, q) and according to Min(p, q. Calculating the fourth sub-pixel control first signal 値 SG 丨 (p, q). Note that for convenience of explanation, the mode just described is hereinafter referred to as "1st A mode". In detail, at 1A In the mode, the fourth sub-pixel control second signal 値 SG2. (P, q > and the fourth sub-pixel control first signal 値 SGi. (p, q) can be calculated from the following equation. C|i, C12, C13, Ci4, C15, and C16 are constants. The second signal 値 SG2. (p, q) and the fourth sub-pixel control first signal 値 SG^ are controlled for the fourth sub-pixel. Each of p, q) can be determined by making a prototype of the image display device or the combination of the image display device and evaluating the image, for example, by an image viewer. SG2-(p, a) = c 11 (Min(p, q)) (1_ι_Α) (1—1—B) SGi-{P,Q) = cn (M i Πίρ,α-))

S • 20- 201137841 or • . (1-2-A), ...(1-2-B) s G2-(pq) = c 12 (M in (PiQ)): SGHp^scuOVIin^tn) Otherwise s G2 -(pt q) = c 13 s G 卜{p. q) == C 13 (Max(P>Q)) 1/2 (Max(p,q-)) 1/2 ...(1—3 —A)f .· · (1-3—B) Otherwise SG2-(piq) = Ci4{ (Min(p,q)/Max(p,q,.2) or (2n-l)} ... (1-4-A) SGi-(p,q) = ci4 { (Min(p,q-)/Max(p,q.)) or (2n-l)} ...(1-4-B Otherwise SG2_(p,q> = c15[ { (2n-l) .Min(p,q)/(Majqp'^-Mindq)) } or (2n-l)] ... (1-5-A ) SGi-(P/q) = ci5[ { (2n-l) -Minjp,^,/(Max(p,q-)-Min(p,q-)) } or (2n-l)] .. (1-5-B) Otherwise SG2-(p,q) = CisiMaxdq) The lower of 1'2 and Min(p,q))···(1-6-A) SG^p' q) = 较低16{Μ3Χ(Ρ〇1/2 and Minhq,) is the lower of the }} . . . (1-6-B) In addition, the 1st A mode can be configured so that, regarding the (p, q) The pixels are based on at least the first sub-pixel input signal, that is, the first sub-pixel input - 21 - 201137841 into the signal 値 XUP, q) ' Max (p, q), Min (p, q), And the fourth sub-pixel controls the second signal, that is, the signal 値 SG2-(P, q) calculates the first sub-pixel output signal or the first sub-picture The output signal 値X^p, q); at least according to the second sub-pixel input signal, that is, the second sub-pixel input signal 値x2.(p, q), Max(p, q), Min(p , q), and the fourth sub-pixel control second signal, that is, the signal 値 SG2. (P, q) calculates the second sub-pixel output signal or the second sub-pixel output signal 値x2-(p, q) And at least according to the third sub-pixel input signal, that is, the third sub-pixel input signal 値X3-(P, q>, Max(p, q), Min(p, q) ', and the fourth sub-picture Controlling the second signal, that is, the signal 値 SG2-(P, 〇 calculating the third sub-pixel output signal or the third sub-pixel output signal 値X3-(P, q). Alternatively, it can be configured according to the present invention. The driving method of the first embodiment is such that: f is defined as a constant according to the image display device, and the HSV (hue, saturation, and lightness) in which expansion is performed by adding the fourth color is calculated by the signal processing region. The saturation s in the color space is the maximum 値vmax(s) of the brightness of the variable, and the signal processing area (a) calculates the full pixel based on the sub-pixel input signals to the plurality of pixels. Degree S and the brightness v(s), (b) calculating the expansion coefficient α 〇 based on at least one of the 値 from Vmax(S) / V(S) calculated for the complex pixel, and (c) at least Calculating the -22-201137841-sub-pixel output signal of the (p, q)th pixel according to the first sub-pixel input signal to the (P, q)th pixel and the expansion coefficient; Calculating the second sub-pixel output signal according to at least the second sub-pixel input signal to the (P, q)th pixel and the expansion coefficient α ;; and at least according to the (p, q)th picture The second sub-pixel input signal and the expansion coefficient of the table are 〇 calculate the third sub-pixel output signal. Note that this mode, which has just been described, is referred to as "the first mode". The expansion coefficient α 0 can be determined for each image display frame. Further, in the above configuration, after the above step (C), the luminance of the planar light source device can be reduced in accordance with the expansion coefficient α 〇 . Where S(p,q) represents the saturation of the (P,q)th pixel and the brightness is represented by V(P>q), which can be expressed in the following way: S (p, q} = (MX (p, q) — M in (p, q)) /M a X (ρ· 〇) V (p, q) = M ax (Pi Q) Note that the saturation s can take from 0 to 1 and The brightness V can be taken from 〇 to 2n-l, where η is the number of display level bits. The “Η” of the “HSV color space” symbolizes the hue representation of a color, and the “S” symbolizes the saturation or vividness of a color. The chromaticity of the degree is expressed. At the same time, "V" symbolizes the brightness 値 or the bright 値 representation of the brightness of a color. This should be applied to the following description. In addition, it can be based on Min(p,q) and expansion coefficient 〇:〇 The fourth sub-pixel control second signal 値 SG2. (P, q) is calculated and the fourth sub-pixel control first signal 値 SGhp, q) is calculated according to the expansion coefficient α 〇. In detail, the fourth sub-pixel control second signal 値 SG2. < P, ... and the fourth sub-pixel can be controlled from the following equation to control the first handshake SGi-(p, q). Note that C21' C22 -23- 201137841, c23, c24, C25, and C26 in the formula are constants. For the fourth sub-pixel control second signal 値 SG2-(P, q) and the fourth sub-pixel control each of the first signals 値 SGhp, ..., what to apply or what can be manufactured by The prototype of the image display device or the image display device combination is evaluated by the image viewer, for example, to appropriately judge. S G2-(p, q) == c 21 (M i Π (Pi Q)) · 〇{〇(2-1-Β) • .· (2~2—A)/ ...(2-2-Β (2-3-A) (2-3-B) SGh(p,q> = C21 (Μ i η (PQ*)) · α〇 or S G2-(PiQ) = c 22 (Μ i η ( Ρ,α)) 2 · α〇SGH(p,Q) = C22(Min(p,q*>)2.a0 Otherwise s G2HP,q> = c 23 (Μ a X (ρ,Q>) 1 /2 ♦ αο S Gl-(pq) = C23 (MaX(p5af)) 1/2 · 〇!〇 Otherwise 3〇2-(1),())=(;24{%111(|),(| ) /^^(1^).2) or (2|1-1) and 〇:. Product of the product}...(2-4-eight) SG (p,q) =.24{ (Min( p,q.) /Max(p,q.)) or the product of (2n-l) and α }}... (2.4-B) Otherwise SG2-(p, q)=c2s[{(2n-l )-Min(p> q/(Max(p, q)-Min(p, q))}^(2n-l)R a 〇2MW)l· (2-5-A) SGi_{P,q> = c25[{(2n-])_Min_/(Max(p,q,)-Min(p,q).)} or the product of (2n-l) and a〇}].. (2-5- B) SG2.(p, q) = c26{Max(p, q) 1/2 and the sum of Min(p, q) and the product of a Q}.. (2-6-A) SGi-(p,q) = 〇26{ The product of the lower of Max({,q,)1/2 and Mir^po and the product of ag}...(2-6-B) s •24- 201137841 In the above 1A mode and 1B mode, wherein Cn and C12 are constant , the fourth sub-pixel output signal of the (p, q)th pixel is calculated by 値X 4 . ( p,q ) ^4-(p,q) ~ (Cll SG2-(p,q) + Ci2 * SGi-(p< q) ) / ( Cn + ^12 ) . . . (3-A) or by x4-(p,q) = Cn'SG2-(p#q) + C12'SGi-( Piq) . . . (3-B) Otherwise by X4-(p,q) = 〇11· (SG2-(p,q) — SGi-(p,q)) + Ci2.SGi-(p,q ) - (. 3-(C) or can be calculated by ^4((q,q) + SGl-(p,q) 2 ) / 2 ] 1/,2 ... ( 3 - D) For the fourth sub-pixel output signal 値X4.(p, q) 2 値 what or what formula can be applied by manufacturing a prototype of the image display device or the image display device combination and The image viewer is evaluated by the image viewer to judge it appropriately. Or 'may select one of the formulas (3-A) to (3-D) according to 値2.(p>q> or select the formula (3_a) to (3-D according to 値 of SGl.(pq) One. Otherwise, according to SG2_(p 〇 and SGi_(p, 値 select one of (3-A) to (3_d). In other words, for each-sub-pixel group' can be fixedly used One of (3-A) to (3-D) to calculate X4-(p, or for each sub-pixel group, optionally using the formula (3-A) to (3-D) Calculate χ4.(ρ,q) Configurable with the driving method according to the second embodiment of the present invention, the image display panel for the use of the first pixel and the second pixel in the second direction Positioning adjacent to each other. In this example, the first sub-pixel configuring the first pixel and the first sub-pixel configuring the second pixel may be adjacent to each other in the second direction or may not be mutually Similarly, the second sub-pixel configuring the first pixel and the second sub-pixel configuring the second pixel may or may not be adjacent to each other in the second direction. Similarly, , configuring the third sub-pixel of the first pixel and The fourth sub-pixels of the second pixel may be disposed adjacent to each other in the second direction or may not be adjacent to each other. Alternatively, the image display panel may be configured such that the first pixels are adjacent to each other in the second direction Setting and the second pixels are arranged adjacent to each other. Also in this example, configuring the first sub-pixel of the first pixel and configuring the first sub-pixel of the second pixel to be mutually in the second direction The neighboring settings may or may not be arranged adjacent to each other. Similarly, the second sub-pixel configuring the first pixel and the second sub-pixel configuring the second pixel may be adjacent to each other in the second direction or may not be mutually Adjacent settings. Similarly, configuring the third sub-pixel of the first pixel and configuring the fourth sub-pixel of the second pixel may be adjacent to each other in the second direction or may not be adjacent to each other. The driving method according to the second embodiment of the present invention, which is preferably configured as described above, may have a mode in which the fourth (p, q)th second pixel is obtained from Min(p, q)_2 The pixel controls the second signal 値 SG2. (P, q >; and obtains the position (p, q) second from Min(p>q·) The fourth sub-pixel adjacent to the pixel next to a first control signal Su Zhi SG ^ p, q). Taking note of convenience of explanation, this pattern of a hereinafter just referred to as "first mode 2A

S -26- 201137841 'Used in the formula (llA), (1- 1-B), (1-2-A), (1-2-B), (1-3-A) ), ( 1-3-B ), (1-4-A) , ( 1 ·4-β ) , ( 1-5-A ) , ( 1-5-B ) , ( 1-6-Α ) ' And (1-6-Β) to calculate the fourth sub-pixel control second signal 値 sg2_ (P, q) and the fourth sub-pixel control first signal 値 SGl. (p, q > for the fourth sub-picture The second signal 値 SG2_(p, q) and the fourth sub-pixel control first signal SG1 - (p' q > each of the 値 値 値 値 値 値 値 値 値 値 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造 制造The prototype of the device or image display device combination is evaluated by the image viewer for example, as appropriate. Further, the 2A mode can be configured in the following manner. In particular, regarding the (P, q) second painting , at least according to the first sub-pixel input signal, that is, the first sub-pixel input signal 値Xi-(p,q)-2, Max(p,q).2, Min(p,q).2 And the fourth sub-pixel controls the second signal, that is, the signal 値 SG2_(p, q) calculates the first sub-pixel output signal or the first sub-pixel output signal値Xhp,q)_2 , and at least according to the second sub-pixel input signal, that is, the second sub-pixel input signal 値X2-(P,q)-2, Max(p,q).2, Min( p, q)-2, and the fourth sub-pixel control second signal 'that is, 'signal 値 SG2-(p, q) calculates the second sub-pixel output signal or the second sub-pixel output signal 値X2-( p, q)_2. Further, regarding the (p, q)th first pixel, at least the first sub-pixel input signal, that is, the first sub-pixel input signal 値Χι·(ρ, q). i, Max(p,q)·丨' Min(p,q)·, and the third sub-pixel control signal, that is, 'signal 値SG3.(p,q) calculates the first sub-pixel output signal or The first sub-pixel output signal 値, and -27-201137841 are based at least on the second sub-pixel input signal, that is, the second sub-picture number 値X2-(P, q)-l, Max(p, q) ·, Min(p, q)-l, and the third prime control signal 'is also' the signal 値 sg3. (p, (a) calculate the second sub-pixel signal or the second sub-pixel output signal 値X2_ (p, Note that by "Max(p, W.1" and "Min(p, q instead of (1-1-B), (1-2-B), (1-3-B) , ( 1-4, (1-5-B), (1-6-B), (2-1-B), (2-2-B), 3-B), (2-4-B), ( 2-5-B), and (2-6-B)

Max(p, q_)" and "Min(p, 〇" to obtain the control signal 値, that is, the three sub-pixel control signal 値 SG3_(P, q). Alternatively, it can be configured to include the above preferred group. According to the driving method of the second embodiment of the present invention, wherein C is a constant depending on the image display device, the saturation S of the HSV color space used by the addition of the fourth color is calculated from the signal. The maximum luminance 値Vmax(S) of the variable, and the signal region (a) calculates the saturation S of the pixel and the luminance V(S) according to the sub-pixel input signal in the complex pixel, (b) at least Calculating the expansion coefficient α 〇 according to one of the 値 of Vma V (S ) calculated from the complex pixel; and (C) according to the first sub-pixel input signal 値Χΐ·(ρ, q).2. The expansion number αο, and the constant % calculate the first sub-output signal 値Xl.(p, q)-2 ' of the (P, q)th second pixels according to the second sub-pixel input signal 値X2.(p, q)-2, expansion factor element input sub-picture output -B) (2-", processing complex number x(S) / expansion system pixel in the first invention interval

S -28- 201137841 and constant X calculate the second sub-pixel output signal 値χ2· of the second pixel Ρ(·, q>-2 control the second signal 値SG2-(P,q) according to the fourth sub-pixel The fourth sub-pixel controls the first signal 値 SG^p, q), the expansion coefficient α 〇, and the constant % to calculate the fourth sub-pixel output signal 値Χ4·(Ρ, q)-2 of the second pixel. It is noted that for convenience of explanation, the mode just described is hereinafter referred to as "2B mode". The configurable drive method allows the expansion factor α 〇 to be determined for each image display frame. In addition, the configurable driving method is to calculate the first sub-pixel output of the first pixel according to the first sub-pixel input signal 値χι·(ρ,〇)-1, the expansion coefficient α 〇, and the constant;値Χΐ·(ρ, q)-l > The second sub-picture of the first pixel is calculated according to the second sub-pixel input signal 値χ2·(Ρ, <〇·!, the expansion coefficient α 0, and the constant Ζ The output signal 値Χ2·(Ρ, q)-l is noted. Note that for convenience of explanation, the mode just described is hereinafter referred to as “2B mode.” The configurable driving method allows the frame to be judged for each image. The expansion coefficient α 〇. The saturation and the degree of the first pixel are indicated by S(p,q)· and V(p,q)·!, respectively, and are respectively S(p,q)-2 and V. (p, q)-2 refers to the saturation and brightness of the (P, q)th first pixel and the second (P, q) second picture in the case of the saturation and brightness of the first pixel. The saturation and brightness of the prime are expressed as: S(p,q)-1 = (MaX(p,q)-i - Min(P/q)-l) /MaX(p,q)-iv(P/q )-i ~ MaX(P,q)-i S(p,q)-2 = (MaX(p,q)-2 - Min(p,q)-2)/MaX(p,q>-2 V (p,q)-2 = MaX(p,q)-2 In addition, the configurable driver The fourth sub-pixel control second signal 値 SG2.(P, q) is calculated according to q)·2 and the expansion system -29-201137841 number α 0 and is calculated according to Min(p,q·) and the expansion coefficient α 〇 The four sub-pixels control the first signal 値 SGi-(p, q). In detail, the equations (2-1-Α), (2-1-B),

(2-2-A), (2-2-B), (2-3-A), (2-3-B), (2-4-A), (2-4-B), (2 -5-A), (2-5-B), (2-6-A), and (2-6-B) calculate the fourth subpixel control second signal 値SG2.(P, q) and The four subpixels control the first signal 値SG Hp, q). Controlling, for the fourth sub-pixel, the second signal 値 SG2. (p, q) and the fourth sub-pixel control each of the first signals 値 SG^p, q), what 値 or what can be applied The prototype of the image display device or the image display device combination is manufactured and evaluated by the image viewer, for example, to appropriately judge. In addition, in the above-mentioned 2A mode and 2B mode, wherein C21 and C22 are constant, the fourth sub-pixel output signal 値X4_(P) of the (p, q)th second pixel can be calculated by the following. , q>-2 X4-(p,q)-2 = (C21-SG2-(p,q) + C22 ' SGi_ (p> q) ) / (C21 + C22) ... (4-A) or Calculate the parent 4-<p,q>-2=匚21* SG2-<p,q> + C22 . SGi· (p,q> . . . ( 4 —B) by the following calculation (p,q>-2 _ C21 . ( SG2-(p, q) _ SGi-<p, q) ) + C22 ' SGi- (p,q) (4-C) Otherwise, by the following Calculating the fourth sub-pixel output signal of the (p, q)th second pixel 値Χ4·(ρ, q)-2 s -30- 201137841 X4-, P, q, -2 = [(SG2., P(q)2 + SGi_(pq)2)/2]i/2 (4_D) For the fourth son's pixel output signal 値X4_(p, 〇-2, what to apply, igh or ft* The image display device or the image display device group can be made to evaluate the image appropriately by, for example, an image viewer, or can be appropriately judged according to the SG2_(p, q) 値 ( 4-Α) to (4_D) - or can be selected according to SG SGHP, q) (4_A) to ( One of 4-D). Otherwise, one of the equations (4-A) to (4_D) can be selected according to sg2.(p, q) and SGl.(pq). In other words, for each sub-pixel group The group 'can be fixed using one of the equations (4_A) to (4_D) to judge X4-(P,q)-2 ' or for each sub-pixel group, optionally using the formula (4-A) to (4-D) - to judge X4_(p, q)-2. In the first B mode or the 2B mode included in the above preferred configuration and mode, 'where the fourth color is added by using The saturation S in the enlarged HSV color space as the maximum luminance 値Vmax(S) of the variable is stored in the signal processing area or calculated by the signal processing area. Then, the sub-pixel input signal 复 is calculated according to the complex pixel The saturation S of the complex pixel and the luminance V(S), and further, the expansion coefficient α 〇 is calculated according to Vmax(S)/V(S). Further, the output signal 〇 is calculated according to the input signal 値 and the expansion coefficient α 値. According to the expansion coefficient α 〇 swells the output signal 値, although the white shows the luminance of the sub-pixels. As in the prior art, the red display sub-pixel, green display does not occur. Sub-pixels, and blues show that the luminance of sub-pixels does not increase. In other words, not only does the luminance of white display sub-pixels increase, but red displays sub-pixels, green displays sub-pixels, and blue displays. The luminance of subpixels will also increase. Therefore, the problem of color darkening -31 - 201137841 can be surely prevented. It is noted that the output signals 値Xl-(P, q), X2-(p, q), and X3-(P, q) and the output signal 値Xb (p, q) can be calculated according to the expansion coefficient α 0 and the constant χ. -l ^2-(p, q)-l ' X3-(p, q)-l Xl-(p, q)-2, and X 2 - ( p,q ) - 2. For the details of S, the above output signal 计算 can be calculated from the following equation. Note that the luminance of the fourth sub-pixel in the (p, q)th second pixel is represented by /· X4-(P, q)·2. 1B mode X Bu (ρ.α) = α〇· χι-(ρ,α) —% · SG2-(pQ) X 2- (ρ· Q) =a〇· X2-(p,q) - % · S G2-(P,a) (5-B) q) a 〇· X 3= (ΐλ q> ^ >t * SG 2- ^ q) (5-C) 2B mode = a〇· xx SG 3- (〇, d) (5-a) — a〇· X 4 SGs-(iv«) (5-b) 'X 3- (^ 0 -l = (3⁄4〇* X 3- fp, q ) -| — % • S G3H'p, fl) (5-c) Λ 1~ (p. ¢) -2 =Qi〇· X l-(p.iii-2=- x • SGudi ... ( 5-d) ^2- q)~2 — ao· χ • SG2, “> ... (5-e) X «〇* X3-(pm)-2~ Z (5-f) Also 'here above In the 2A mode and the 2B mode, wherein C3I and CJ2 are constant, for example, the third subpixel output signal can be calculated from the following equation, that is, the third subpixel output signal 値Χ3·(ρ, X3) -(p,Q)-1= (C31.X' 3-<pq)-I + C32.X' 3-(p.q>-2) / (C21+C22) (6-a)

S -32- 201137841 Or, , X3-ml=C31 · X' 3-(p,a)-l+C32 . X' 3-(Ρ.αΗ ...(6-b) or t X;i-(P , q)-l==C2l· (x 3-(p. q)~l -X' 3-(p. q}-2) +C22.X 3-(P,a>-2 ...(6- c) generally, when a signal having a maximum signal 相应 corresponding to the first sub-pixel output signal is input to the first sub-pixel and a signal having a maximum signal 相应 corresponding to the second sub-pixel output signal is input to the The second sub-pixel has a signal having a maximum signal 相应 corresponding to the output signal of the third sub-pixel, and a set of first and second, one pixel or one pixel group is configured when the signal is input to the third sub-pixel. And the luminance of the third sub-pixel is represented by BN, .3, and a signal having a maximum signal 相应 corresponding to the fourth sub-pixel output signal is input to the configured pixel or the fourth group of the pixel group. In the case where the luminance of the fourth sub-pixel is represented by BN4, the constant can be expressed as follows: χ = BN4/BNi-3 where the constant X is unique for the image display panel, the image display device, or the image display device combination値, and by the image display panel 'image display device Or the image display device combination is uniquely judged. This mode can be configured to determine the minimum 値a min from the 値 of vmax (S)/V(S)[three a (S)] calculated for the complex pixel. As the expansion coefficient α 0. Or, depending on the image to be displayed, one of the 値 in (1±〇.4 )· ami η can be used as the expansion coefficient a 0. Otherwise, it is at least based on the complex pixel. The judged Vmax (S) / V (S) [ = a (S)] of one of the 値 to determine the expansion coefficient α ο ' can calculate the expansion coefficient α Q ' according to one of the minimum 値 ami η Or you can calculate the complex -33-201137841 number 値a (S) from the minimum 并可 and use the average 値 a ave of these 作为 as the expansion coefficient α 〇. The expansion can be judged from (1±0.4). a ave The coefficient α 〇. Otherwise, in the case where the number of pixels is less than the predetermined number when the complex 値 a (S) is sequentially calculated from the minimum ,, the complex number may be changed to sequentially determine the plural 値 a from the minimum ( ( S) » In addition, in the case where all input signals in some pixel groups are equal to "0" or very low, The pixel group is excluded to calculate the expansion coefficient α 〇. The fourth color may be white. However, the fourth color is not limited thereto. The fourth color may be some other color such as yellow, cyan, or magenta. In those cases, in the case of configuring the image display device from the color liquid crystal display device, it may further include a first color filter disposed between the first sub-pixel and the image viewer for transmitting the first through a primary color, a second color filter disposed between the second sub-pixel and the image viewer for transmitting the second primary color through the third color filter and the third sub-pixel and the image viewer Between, through which the third primary color is transmitted. Where PG is the number of pixels of the configured one pixel group and pQ X ΡΞΡ〇, a mode may be adopted in which the complex pixels for which the saturation S and the luminance V(s) are to be calculated may be all P〇x Q picture. Or another mode may be used, in which the complex pixel for which the saturation S and the luminance V(S) will be calculated may be P〇/P' XQ/Q' pixels, where Ρ〇2Ρ· and Q2Q·, There are at least one of Ρο/P· and Q/(T is a natural number equal to or greater than 2. Note that the specific 値 of Po/p· or Q/Q′ can be a power of 2, such as 2, 4, 8 , 16, .... if adopted

S -34- 201137841 The former mode maintains good picture quality without picture quality variation. On the other hand, if the latter mode is employed, an improvement in processing speed and simplification of the circuit of the signal processing area can be expected. Note that 'in this example', for example, if P〇/P' = 4 and Q/Q' = 4' then a saturation S and a luminance 値V(S) ' are calculated from every four pixels. The remaining three pixels 'Vn^(S) /V(S)[three a (S)] may be lower than the expansion coefficient Q: 〇. In particular, the 値 of the expanded output signal may exceed Vmax (S). In such an example, for example, the upper limit 値 of the 输出 of the expanded output signal can be made to be equal to Vmax (S). Although the shape of each sub-pixel is generally rectangular, it is preferable to arrange each sub-pixel such that its longer side extends in parallel with the second direction and the shorter side thereof extends in parallel with the first direction. As a light source for configuring a planar light source device, a light-emitting element, in particular a light-emitting diode (LED), can be used. The light-emitting element forming the self-luminous diode has a relatively small footprint and is suitable for providing a plurality of light-emitting elements. As the light-emitting diode which becomes a light-emitting element, a white light-emitting diode such as a light-emitting diode which emits a combination of self-emissive violet or blue light diode and light-emitting particles to emit white light can be used. Here, as the luminescent particles, red light-emitting phosphor particles, green light-emitting phosphor particles, and blue light-emitting phosphor particles can be used. As a material for configuring red-emitting phosphor particles, Y2〇3 : Eu, YVO4 : Eu, Y(P, V)04 : Eu , .3 . 5 M g Ο · 0.5 M g F 2 · G e 2 can be applied. : Μ n, C a S i 0 3 : P b, Μ n, Mg6AsO, , : Mn ' (Sr, Mg) 3 (P04) 3 : Sn, La202S : Eu, Y2O2S: Eu, (ME: Eu)S (where "ME" symbolizes at least one atom selected from the group consisting of Ca, Sr, and Ba, and the same applies to the following description), 201137841

(Μ : Sm)x(Si, A1)12(0,N)16 (wherein "Μ" symbolizes at least one atom selected from the group consisting of Li, Mg, and Ca, and the same applies to the following description), M e2 S i 5N 8 : Eu, (C a : Eu) S iN2, and (C a : Eu)AlSiN3. Meanwhile, as a material for configuring green light-emitting phosphor particles, LaP〇4: Ce, Tb, BaMgAli〇〇i7: Eu, Mn, Zn2Si〇4: Μη, MgAl 丨i〇i9: Ce, Tb, Y2Si〇 can be used. 5 : Ce, Tb 'MgAl" 019: CE, Tb, and Mn. In addition, (ME: Eu)Ga2S4, (M: RE) x (Si, A1) 12 (0, N) 16 (where "RE" symbolizes Tb and Yb), (M: Tb) x (Si, Al can be used) ) 12 (0, N) 16 KM: Yb) x (Si, Al) 12 (0, N) 16. In addition, as a material for configuring blue-emitting phosphor particles, BaMgAli〇Oi7: Eu, BaMg2Ali6〇27: Eu, Sr2P2〇7: Eu, Sr5(P〇4)3Cl: Eu, (Sr, Ca, Ba, Mg) can be used. ) 5(P〇4)3Cl : Eu,

CaW04, and CaW04: Pb. However, the luminescent particles are not limited to phosphorus particles, and for example, for indirect transition type 矽 type materials, luminescent particles can be applied, which employ quantum well structures using quantum effects by localizing the wave function of the carrier (such as a two-dimensional quantum well structure) A one-dimensional quantum well structure (quantum thin line) or a zero-dimensional quantum well structure (quantum dot) efficiently converts a carrier into light as a material of a direct transition type. Or, it is known that a rare earth atom added to a semiconductor material is used. The transition in the shell is sharply illuminated, and luminescent particles using the technique just described can be used. Otherwise, the red emitting element can be emitted (for example, a red light emitting a red light having a wavelength of 640 nm as the main emitted light) a polar light emitting element (for example, a GaN-based light emitting diode that emits green light having a dominant emission wavelength of 530 nm), and a blue light emitting element (for example, the emission has a -36- 201137841 450 nm of the main emission light wavelength of the blue GaN-based light-emitting diode) is configured to configure the light source of the planar light source device. The planar light source device can be packaged The light emitting element emitting light of a fourth color or a fifth color of non-red, green, and blue light. The light emitting diode may have a face-up structure or a flip chip structure. In particular, the light-emitting diode is configured from the substrate and formed. a light-emitting layer on the substrate and may be configured such that light emitted from the light-emitting layer to the outside or from the light-emitting layer is emitted to the outside through the substrate. In detail, the light-emitting diode (LED) has, for example, formed on the substrate and has a first compound semiconductor layer of a first conductivity type (eg, n-type), an active layer formed on the first compound semiconductor layer, and a second compound semiconductor formed on the active layer and having a second conductivity type (eg, p-type) a laminated structure of layers: the light emitting diode includes a first electrode electrically connected to the first compound semiconductor layer, and a second electrode electrically connected to the second compound semiconductor layer. The layer configuring the light emitting diode may be a known compound Made of a semiconductor material that depends on the wavelength of the emitted light. A planar light source device can be formed into any of two different planar light source devices or backlights, including The present invention discloses a direct planar light source device in the case of Sho 63-187120 or Japanese Patent Publication No. 2002-277870, and an edge light type or side disclosed in, for example, Japanese Patent Publication No. 2002-1 3 1 5 5 2 Light-type planar light source device. The direct planar light source device can be configured such that a plurality of light-emitting elements each serving as a light source are disposed and arranged in a casing. However, the direct planar light source device is not limited thereto. Here, the plurality of red light-emitting elements are In the case where the plurality of green light emitting elements and the plurality of blue light emitting elements are disposed and arranged in a casing - 37-201137841, the array of the following light emitting elements can be provided. Especially in the screen of an image display panel such as a liquid device A group of optical elements (each including a red light emitting element, a green light emitting, and a blue light emitting element) are continuously disposed in the horizontal direction to form an array of light emitting elements. The image display panel is vertically aligned with the array of component groups in the vertical direction of the screen. It is noted that a group of light emitting elements may be formed in several types, including a combination of a red light emitting element, a green light emitting element, and a blue element; a red light emitting element, two green light emitting elements, and another light emitting element Combination; a combination of two red light emitting elements, two green light elements, and a blue light emitting element; and the like. , can be attached to expose such a light extraction lens to each hairpin in ^^__5/6£^0«1'£^, No. 8 8 9th, December 20th, page 128 Furthermore, in the case where the direct planar light source device is configured from a complex planar light, a planar light source unit can be configured from two or more light emitting component groups of a light emitting component group. Otherwise, a planar light source unit can emit a single white light diode or two or more white light emitting diodes. In a direct planar light source device configured from a complex planar light source unit, a partition wall can be arranged between the planar light source units. As a material for the configuration, a material which is impermeable to light emitted from a light-emitting element provided in a planar light source unit is a resin such as an acrylic-based resin, an ester resin, or an ABS resin. Alternatively, as a material permeable to light emitted from a light-emitting element disposed in a planar element, a methyl acrylate resin (PMMA) may be used, and a polycarbonate resin (PC) crystal may be used to display a plurality of components, In the illuminating combination, the light emission and a blue emitting element are noted in 2004. The optical component source unit group or the self-configured self-contained case, the polycarbonate source of the polycarbonate source, the polyaryl 201137841 ester resin (PAR), the poly pair Ethylene phthalate resin (PET), or glass. A light diffuse reflection function can be applied to the surface of the partition wall, or a specular reflection function can be applied. In order to apply the light diffusion reflection function to the surface of the partition wall, a film having a concave portion and a convex portion, that is, a light diffusion film may be adhered to the surface of the partition wall to form a concave portion and a convex portion on the surface of the partition wall by sandblasting or bonding. unit. In order to apply the specular reflection function to the surface of the partition wall, the light reflecting film may be adhered to the surface of the partition wall, or a light reflecting layer may be formed, for example, by plating on the surface of the partition wall. The direct planar light source device can be configured to include a light diffusing plate, an optical functional patch group including a light diffusing sheet, a cymbal sheet or a polarizing converter sheet, and a light reflecting sheet. Known materials can be widely used for the light diffusing plate, the light diffusing sheet, the cymbal sheet, the polarizing conversion sheet, and the light reflecting sheet. The group of optical functional sheets can be formed from a variety of sheets, placed in spaced relation or stacked in a mutually integrated relationship. For example, light diffusing sheets, cymbals, polarizing plates, and the like can be stacked in a mutually integrated relationship. The light diffusing plate and the optical function sheet group are disposed between the planar light source device and the image display panel. Meanwhile, in the edge light type planar light source device, the light guide plate is disposed in a relationship with the image display panel (especially, for example, a liquid crystal display device), and the light emitting element is disposed on a side surface (hereinafter referred to as a first side surface) of the light guide plate. The light guide plate has a first surface or a bottom surface, a second surface or a top surface opposite to the first surface, a first side surface, a second side surface, a third side surface opposite to the first side surface, and a fourth side surface opposite to the second side surface . As a more specific shape of the light guide plate, a substantially wedge-shaped quadrangular pyramid shape can be applied. In this example, the opposite faces of the cross-section pyramid correspond to the first and second faces, and the bottom of the cross-section pyramid -39-201137841 corresponds to the first side. Preferably. A convex portion and/or a concave portion are provided on the surface portion of the first surface or the bottom surface. Light is introduced into the light guide through the first side and emitted from the second or top surface toward the image display panel. The second side of the light guide plate may have a smooth state, or a mirror surface, or may be provided with a spray embossing which exhibits a light diffusing effect, that is, a finely roughened surface. Preferably, the convex portion and/or the concave portion are provided on the first surface or the bottom surface. In particular, it is preferable to provide a convex portion or a concave portion which is a concave-convex portion to the first side of the light guide plate. When the concave-convex portion is provided, the concave portion and the convex portion may be formed continuously or discontinuously. The projections and/or recesses provided on the first face of the light guide plate may be configured as successive projections or recesses extending in a direction inclined at a predetermined angle with respect to the incident direction of light to the light guide plate. With the above configuration, when the light guide plate is cut along a virtual plane extending in the incident direction of the light to the light guide plate and perpendicular to the first surface, a triangular shape may be applied as a cross-sectional shape of the continuous convex portion or the concave portion. Any square shape including a square, a rectangle, and a trapezoid, an arbitrary polygon, or any smooth curve including a circle, an ellipse, a parabola, a hyperbola, a chain, and the like. It is noted that the direction in which the incident direction of light to the light guide plate is inclined at a predetermined angle symbolizes the direction from 60 to 120 degrees in the case where the incident direction of light to the light guide plate is a twist. The same applies to the following instructions. Or the convex portion and/or the concave portion disposed on the first surface of the light guide plate may be configured as a discontinuous convex portion and/or a concave portion extending in a direction inclined at a predetermined angle with respect to an incident direction of light to the light guide plate. . In the configuration just described, as the shape of the discontinuous protrusion or the recess, various curved faces such as a cone, a cone, a cylinder, a polygonal corner cylinder including a triangular angle cylinder and a quadrangular angle cylinder, and a sphere can be applied. It

S -40- 201137841 Part, part of the ellipsoid, throwing points. Note that a convex or concave portion is formed if necessary. Further, the light impact is formed on the first surface, and is formed at the degree or depth of the light guide plate, the pitch, and the shape. In the latter case, the distance between the portions or the recesses may become more spaced to symbolize the distance between the portions to the light guide plate. The plane including the light guide plate is disposed in relationship with the first surface of the light guide plate, for example, a liquid crystal display device. The bottom surface of the smooth square pyramid emitted from the light source enters the guide portion or the concave portion and is separated by the convex portion or the concave portion, and then the light reflection member is reversed, the light is from the second surface of the light guide plate, and the light diffusion sheet or the rib piece can be set. between. Or, it can be guided from the light to the light guide. In the latter

Preferably, the light guide plate is never absorbed. In particular, as a group, the glass 'plastic (such as a part of the PMMA object body and the part of the hyperbolic body may not be emitted from the light source and introduced into the convex portion or the concave portion of the light guide plate at the peripheral portion of the first surface of the light guide plate or The height of the convex portion or the concave portion on the first surface of the convex portion or the concave portion may be fixed or increased as the distance from the light source increases from the distance of the light source, for example, a convex portion. Here, the light between the convex portions or the concave portion Preferably, the light reflecting member is disposed in a pair relationship between the convex portions of the incident direction or the concave light source device. The image display panel is disposed on the second side opposite to the second surface of the light guide plate via the first side (which corresponds to For example, the light intercepting plate, in this case, the light impacts the convex scattering of the first surface, and then from the first surface of the light guide plate and enters the light guide plate through the first surface. The image display panel is exposed and illuminated. For example, in the image display panel and the light guide plate The light emitted by the second source is directly led to the light guide plate or the condition, for example, an optical fiber can be used. Many materials for the light emitted from the light source can be used, for example, polycarbonate. Resin, acrylic-based -41 - 201137841 Resin, amorphous polypropylene-based resin, and styrene-based resin including AS resin. In the present invention, the driving method and driving conditions of the planar light source device are not particularly The light source can be controlled in a unified manner. In particular, for example, the plurality of light-emitting elements can be driven at the same time. Alternatively, the plurality of light-emitting elements can be driven in part or in sections. In particular, when the planar light source device is configured from a complex planar light source unit, the planar light source device can be Configured from the SXT planar light source unit, when the display area of the image display panel is virtually divided into SXT display area units, the SX τ planar light source unit corresponds to the SXT display area unit. In this example, the s XT planar light source unit can be individually controlled. The driving circuit of the planar light source device and the image display panel includes, for example, a planar light source device control circuit configured with a self-luminous diode (LED) driving circuit, a computing circuit, a storage device, or a memory, and a group The image display panel drive circuit of the known circuit. Note that it can be The planar light source device control circuit includes a temperature control circuit for controlling the luminance (i.e., display luminance) of the display region and the luminance of the planar light source unit (i.e., the luminance of the light source) for each image display frame. The number of image information sent to the driving circuit as an electrical signal (that is, the number of images per second) is the m frame frequency or the frame rate, and the reciprocal of the frame frequency is the frame time, and the unit is in seconds. The liquid crystal display device includes, for example, a front panel including a transparent first electrode, a rear panel including a transparent second electrode, and a liquid crystal material disposed between the front panel and the rear panel. More particularly, the front panel is configured from, for example, a glass substrate or a crucible. Substrate formation

a first substrate of S-42-201137841, a transparent first electrode (also referred to as a common electrode) provided on an inner surface of the first substrate and made of, for example, indium tin oxide (ITO), and disposed on the first substrate A polarizing film on the outside. Further, the 'transmissive type color liquid crystal display device' includes a color filter ' disposed on the inner surface of the first substrate', which is covered with a cover layer made of acrylic resin or epoxy resin. The front panel is further configured such that a transparent first electrode is formed on the cover layer. It is noted that a positioning film is formed on the transparent first electrode. At the same time, it is more particularly configured to configure the rear panel from a second substrate formed, for example, of a glass substrate or a germanium substrate, to form a switching element on the inner surface of the second substrate, made of, for example, ITO and controlled by the switching element in conduction and non-conduction. A transparent second electrode (also referred to as a pixel electrode) and a polarizing film disposed on the outer surface of the second substrate. The positioning film is formed over the entire area including the transparent second electrode. These various components and liquid crystal materials of a liquid crystal display device configured to include a transmissive color liquid crystal display device can be configured with known components and materials. As the switching element, for example, a three-terminal element such as a MOS type (metal oxide semiconductor) FET or a thin film transistor (TFT) and a two-terminal element (such as a MIM (Metal-Insulator-Metal) element), a varistor element, And a diode formed on the single crystal germanium semiconductor substrate). The number of pixels arranged in the two-dimensional matrix is PG in the first direction and Q in the second direction. In the case where the number of pixels is represented by (PQ, Q) for convenience of explanation, as the (PQ, Q) 値, several kinds of resolutions can be used for image display. In particular, VGA (640,480), S-VGA (800,

600), XGA ( 1,024, 76 8 ), APRC ( 1,1 52, 900 ), S-XGA ( 1,280, 1,024 ) ' U-XGA ( 1,600, 1,200 ) , HD-TV -43- 201137841 (1,92 0, 1,0 80 ), and Q-XGA ( 2,04 8,1,5 3 6 ), and ( 1,92 0, 1,03 5 ), ( 720, 4 80 ), and (1,280, 960). However, the number of pixels is not limited to those numbers. Further, as the relationship between 値 of (P〇, Q) and 値 of (S, T), there may be, for example, such a relationship as listed in the following Table 1, although the relationship is not limited to these. As the number of pixels for configuring a display area unit, 20 X 20 to 320 X 240, preferably 5 0 X 5 0 to 200 X 200 can be used. The number of pixels in different display area units may be equal or unequal to each other. Table 1 値T of ST VGA (640, 480) 2~3 2 2-2 4 S-VGA (8 00, 600) 3~4 0 2~30 XG A (1 0 2 4. 7 6 8) 4~5 0 3~3 9 AP RC (1 1 5 2, 9 0 0) 4~ 5 8 3-4 5 S-XG A (1 2 8 0, 1 0 2 4) 4~ 6 4 4~5 1 U-XGA (1 600. 1 2 0 0) 6~8 0 4~60 HD-TV (1 9 20, 1 08 0) 6~8 6 4~54 Q-XGA (2 0 48, 1 5 3 6) 7~1 0 2 5~7 7 (1 9 2 0, 1 03 5) 7~6 4 4~5 2 (7 20.4 8 0) 3~3 4 2~2 4 (1 280, 960) 4 ~ 6 4 3 to 4 8 In the image display device and the image display device driving method of the present invention, a direct type or projection type color image display device and a field sequential type color image display device can be used as the image display device. It is noted that the number S of light-emitting elements of the configuration image display device can be determined according to the specifications of the image display device - 44 - 201137841. In addition, depending on the specifications required for the image display device, the image display device can be configured to include a light valve. The image display device is not limited to a color liquid crystal display device, but may be formed as an organic electroluminescence display device, that is, an organic EL display device, an inorganic electroluminescence display device, that is, an inorganic EL display device, and a cold cathode field electron emission display. Device (FED), surface conduction electron emission display device (SED), plasma display device (PDP), diffraction grating light modulation device including diffraction grating light modulation element (GLV), digital micromirror device (DMD) ), CRT, or the like. Further, the color liquid crystal display device is not limited to a transmissive liquid crystal display device, but may be a reflective liquid crystal display device or a transflective liquid crystal display device. Feasible Example 1 Possible Example 1 relates to a driving method of an image display device according to a first embodiment of the present invention and a driving method of the image display device combination according to the first embodiment of the present invention, and particularly to the first A mode. Referring to Fig. 2, the image display device 1 of the possible example 1 includes an image display panel 30 and a signal processing area 20. Further, the image display device combination of the possible example 1 includes the image display device 1 〇 ' and the planar light source device 50 that illuminates the image display device 10 (especially the image display panel 30) from the rear side. Referring to FIG. 1 , which schematically illustrates the configuration of pixels, the image display panel 30 of the possible example 1 includes a total of P 〇 X Qo pixels Px arranged in a two-dimensional matrix including PQs arranged in the first direction. The pixel px and the Q 〇 pixel 排列 arranged in the second direction. Each pixel Px includes a first sub-pixel displaying the first primary color (such as red-45-201137841 color) (labeled as R) and a second sub-pixel displaying the second primary color (such as green) (marked as G) And displaying a third sub-pixel of the third primary color (such as blue) (marked as B), and displaying a fourth sub-pixel of the fourth color (such as white) (labeled as W). The sub-pixels of each pixel Px are arranged in the first direction. The configuration of the pixels is shown in Figure 3. Each sub-pixel has a rectangular shape and is arranged such that the long side of the rectangle extends parallel to the second direction and the short side of the rectangle extends parallel to the first direction. The image display device 1 of the possible example 1 is particularly formed with a self-transmissive color liquid crystal display device, and the image display panel 30 is formed from a color liquid crystal display panel. The image display panel 30 includes a first color filter disposed between the first sub-pixel and the image viewer for transmitting the first primary color therethrough, and is disposed between the second sub-pixel and the image viewer. a second color filter passing through the second primary color and a third color filter disposed between the third sub-pixel and the image viewer for transmitting the third primary color therethrough. Note that the color filter is not set for the fourth sub-pixel that displays white. A transparent resin layer may be provided instead of the color filter. Therefore, it is possible to prevent the formation of a large amount of offset on the fourth sub-pixel caused by not setting the color filter. Referring back to Fig. 2, in a possible example 1, the signal processing area 20 includes an image display panel driving circuit 40 for driving an image display panel (particularly a color liquid crystal display panel), and a planar light source device control circuit 60 for driving the planar light source device 50. The image display panel drive circuit 40 includes an output circuit 41 and a scan circuit 42. It is noted that a switching element, such as a thin film transistor (TFT), for controlling the operation (i.e., light transmissive factor) of each sub-pixel of the image display panel 30 is controlled by the scanning circuit 42 between on and off. At the same time, at

S-46 - 201137841 The signal output circuit 4 1 holds an image signal and outputs it to the image display panel 30 in succession. The signal output circuit 41 and the image display panel 3 are electrically connected to each other by a wiring DTL, and the scanning circuit 42 and the image display panel 3 are electrically connected to each other by a wiring SCL. Note that in the possible example of the present invention, in the case where the number of display level bits is "η", n is set to n = 8. In other words, the number of display control bits is 8 bits' and the level of the display level is particularly in the range from 〇 to 255. Note that the maximum 値 of the display level is sometimes expressed as 2 n - 1. The signal processing area 20 calculates the first sub-pixel output signal of the pixel Px (p, according to the first sub-pixel input signal (that is, the first sub-pixel input signal 値Χΐ·(ρ, q)) (also That is, the first sub-pixel output signal 値X^p ^), and outputs the determined first sub-pixel output signal to the first sub-pixel. Further, the signal processing area 20 is based on the second sub-pixel input signal ( That is, the second subpixel input signal 値X2.(p, q) is calculated to the second subpixel output signal of the pixel PX(P, q) (ie, the second subpixel output signal 値X2) - (p, q)), and outputting the determined second sub-pixel output signal to the second sub-pixel. The signal processing area 20 is based on the third sub-pixel input signal (ie, the third sub-pixel input signal 値X3-(p, q)) calculates a third sub-pixel output signal to the pixel Px(p, q) (ie, the third sub-pixel output signal 値X 3 · ( p, q )), and outputs The determined third sub-pixel output signal to the third sub-pixel. Here, in the feasible example 1, to the signal processing area 20, input about the (p, q)th pixel Px(p, q) ( Where lgpgp., ISq S Qo ), has The first sub-pixel input signal of the signal ,, •47· 201137841 The second sub-pixel input signal 'with X2.(p,q) signal 以及 and the third signal with X3-ip,q) Subpixel Input Signal In addition, the signal processing area 20 outputs, for the first Px (p, q) pixels, the first subpixel output of the signal having Xhp, q) for determining the display level of the first subpixel R a signal, determining a second sub-pixel output signal of the signal of X2.(p, q) of the display level of the second sub-pixel G, and determining that the display level of the third sub-pixel B has X3_(p, q a third sub-pixel output signal of the signal ,, and a fourth sub-pixel output signal of the signal X having the display level of the fourth sub-pixel W having X4.(p, q). In addition, regarding the adjacent pixel located next to the (P, q)th pixel' input, the first sub-pixel input signal ' having the signal XI.(P, q·) has X2. (P, q , the second sub-pixel input signal of the signal ' and the third sub-pixel input signal of the signal X having X3. (P, q,), in addition, the signal processing area 20 outputs, regarding the adjacent pixel' Judging the display level of the first sub-pixel has a first sub-pixel output signal of Χι·(Ρ,β的信@値, and determining the display level of the second sub-pixel has Χ2·(Ρ, the signal 値a second sub-pixel output signal, determining a display level of the third sub-pixel having a third sub-pixel output signal of Χ3-(Ρ, 0·>, and -48- 201137841 determining the fourth sub- The display level of the pixel has a fourth sub-pixel output signal of Χ4·(Ρ, (7). Note that in the feasible example 1, the adjacent pixel positioned next to the (p, q) is the (p) , ql) a single pixel. This is also suitable for his feasible example. However, adjacent pixels are not limited to this 'but can be q + Ι) pixels or the (p, ql) pixels and the first (P, 9 + 1) two In addition, the 'signal processing area 20 depends on the (p, q)th pixel from the time when the pixels are along the second number (P is 丨, 2, ..., 1, 2, ..., Q〇) a first sub-pixel input signal, a second sub-input signal, and a fourth sub-picture second signal determined by the third sub-pixel input signal and positioned in the second direction from the second direction (P, Determining the fourth sub-pixel output signal by calculating a fourth sub-picture first signal calculated by the first sub-pixel input signal, the second sub-input signal, and the third sub-pixel input signal of the adjacent pixels next to the pixel Then, the signal 20 outputs the determined fourth sub-pixel output signal to the fourth sub-pixel of the (p, q). In detail, from the (P, q)th pixel Px (p, q) The first input signal Xl-(P, q), the second sub-pixel input signal X2_(P, q), and the sub-pixel input signal X3. (P, q) calculate the fourth sub-pixel control SG2 (P, q>. At the same time, the first sub-pixel input signal Χ1-(ρ> two sub-pixel input signal X2- positioned adjacent to the adjacent pixel in the second direction (P, q_), and third subpixel input No. 3. (ρ The fourth sub-pixel controls the first signal SGhp, q> Then, according to the signal, a pixel is used for its (P, pixel direction meter P〇 and q pixel transfer control q) a pixel of the pixel control processing area, the pixel element sub-pixel and the third two signals p, q) q,), the first _ calculate the fourth sub-49-201137841 pixel control second signal SG2_ (P, q> and the fourth sub-pixel control first signal SGi.u, q) calculate the fourth sub-pixel output signal, and output the calculated fourth sub-pixel output signal Χ4·(ρ, q) to the (p) , q) a picture. In the feasible example 1, the 1A mode is employed. Specifically, the fourth sub-pixel control second signal 値 SG2-(P, q) is calculated according to Min(p, q) of the (p, q)th pixel Px(p, q) and is based on the (p, q) adjacent pixels Px(p, q) next to the adjacent pixel Px (p, Min(p, q.) calculates the fourth sub-pixel control first signal 値 SGhp, q) ο In detail, from The following equations (1-1-Α) and (1-1·Β) calculate the fourth sub-pixel control second signal 値 SG2. (P > q) and the fourth sub-pixel control first signal 値 SGhp , q). However, in the feasible example 1, 'ch = 1. Note that for the fourth sub-pixel control second signal 値 SG2-(P, q) and the fourth sub-pixel control first signal 値 SG Hp, what is applied to each of the heart, or what formula The prototype of the image display device 1 or the image display device combination is manufactured and evaluated by the image viewer, for example, to appropriately judge. SG2-(p,a) = Cn (Mi n(p((l)) ^ SG i- (p, Q) = c ] 1 (M in (Pi Q'))...(llB) The fourth subpixel output signal 値X 4 · ( p,q ) is calculated from the following equation (3-A). Note that in the feasible example 1, 'C丨1 = C 1 2 = ' 1. In other words, Calculate the fourth subpixel output signal 値Χ4·(Ρ, q) from the following equation (3_A') of the arithmetic mechanism

S -50- 201137841 X4-(p,ql= (C".SG2-{p,〇)+ C!2.3 01-11),0}) / (C" + Ci2) ...(3-A) =( SG2-(p,q> + SGhp,q,) /2".(3_a,) In addition, at least according to the first sub-pixel input signal 値X|-(P, q), Max(p,, Min(p , q), and the fourth sub-pixel control second signal 値 SG2-(p, q) is calculated to the first sub-pixel output signal 値Xhp of the (p, q)th pixel Px(p, q), q> In addition, the second signal 値 SG2 is controlled according to at least the second sub-pixel input signals 値X2.(p,q), MaX(p,q), Min(p,q), and the fourth sub-pixel. (p, q) is calculated to the (P, q)th pixel Px (P, < 第二 second sub-pixel output signal 値Χ2·(ρ, q). In addition, at least according to the third sub-pixel input Signal 値X3-(P, q), Max(p,q), Min(p,q>, and fourth sub-pixel control table.. Signal 値SG2.(P, q) is calculated to the first (P, q) a pixel Px (p, the third sub-pixel output signal 値X 3 · ( p, q ). Here, in the feasible example 1 'the first sub-pixel output signal 値X 1 · p,q ) [Xl_(p,q), Max(p,q)f ΜίΠ(ρ,ς), SG2-(p(q), χ] Calculate the second subpixel output signal 値Χ2·(Ρ, [X2-(p,q), Max (p,q> , Min (p, q) , SG2-(p,q)f X ] and according to the following Calculate the third subpixel output signal 値Χ3·(Ρ,q) [X3- (p,q) I MaX(p,q) r ΜΐΠ(ρ,ς) , SG2-(p,q>, X] It is assumed that, with respect to the pixel Px(p, q), for example, an input signal having an input signal 由 represented by the following expression (11 - A) is input to the signal processing area 20, and with respect to adjacent pixels Px(p, q_)' For example, an input signal having an input signal 表示 represented by the following expression (Π -B ) is input to the signal processing area 20 - 51 - 201137841 χ 3- (ρ, α ) <χ卜(ρ, (ι> χ2-(ρ. Q·} <Χ2-{ρ,(〇... (1ι_Α) 〈xHp,q'}...(11_Β} In this example, Μ i η (P,Q) =X3-(p,q> ... (12_Α)

Mi η(ρ>αΊ=:χ2_(ρ>^) (i2B) Next, it is judged according to Min (p, q) that the fourth sub-pixel controls the second signal 値 SG2-(P, q) ' and is based on Min (p , q.) Determine the fourth sub-pixel control first signal 値 SGhp, q). In particular, S G2-(pa)=M i η (ρ,α) = Χ3-(ρ.α)2 (13-Α) S Gi-(pa)=M i η (Ρ(αΊ一Χ2- (ρ,(Π (13·Β) In addition, Χ4-(ρ, Q) = (S G2-(p>q) + SG|-(P(q)) /2 =(x3-(p,q) + X2-(p.q')) (14) Incidentally, the luminance of the input signal 依据 and the output signal 输出 of the output signal according to the input signal must satisfy the following relationship to satisfy the requirement that the chromaticity is maintained. To, the fourth sub-pixel output signal 値X4.(p, q) is multiplied by X ' because the fourth sub-pixel is X times brighter than the other sub-pixels, which will be described later. X(pq) =( X卜(pq) + X · SG2-(p,q>) / (Μ3χ(ΙΜ) + χ . SG2-<P,q!) ... (15-A) s -52- 201137841 χ 2- .ip. ti) /M a χ (ρ, ο =(X2-fp,Q) + X * SG2~(p,ci)) / CMax(p,a) + % · SG2-(p<q)) ... (15-B) X3-(p,q>/M a X (pq) =(X3-(pq) + X · SG2-(pq)) / (M a X (p; q)-f % · SG2-(p,Q)) ... (15-C)

Note that when a signal having a maximum signal 相应 corresponding to the first sub-pixel output signal is input to the first sub-pixel and a signal having a maximum signal 相应 corresponding to the second sub-pixel output signal is input to the second sub-picture When a signal having a maximum signal 相应 corresponding to the output signal of the third sub-pixel is input to the third sub-pixel, a pixel is configured (a pixel group in the feasible examples 5 and 6 described later) The luminance of a set of first, second, and third sub-pixels is represented by BNL3, and a signal having a maximum signal 相应 corresponding to the fourth sub-pixel output signal is input to the configured pixel ( In the case of the fourth sub-pixel of the pixel group in the possible examples 5 and 6 described later, in the case where the luminance of the fourth sub-pixel is represented by BN4, the constant X χ = ΒΝ 4 can be expressed as follows. /ΒΝι-3 Here, the constant X is a unique combination of the image display panel 30, the image display device', or the image display device, and is uniquely determined by the combination of the image display panel 30, the image display device, or the image display device. In particular, when it is assumed that the input signal having the display level 値255 is input to the fourth sub-pixel, the luminance ΒΝ4 is, for example, when an input signal having the following display level is input to the first, second, and third sub-sets of the group. The whiteness of the white color BN!.3 is 1.5 times as high -53- 201137841

Xl-(p,q) = 255 ^2-(p,q) = 255 ^3-(p,q) = 255 In particular, in the feasible example 1, or in the feasible example described later, X = 1.5 Thus, from the equations (15-A), (15B), and (15-C), the output signal is calculated as follows: } /Max(P<q, ..(16-Α) Χΐ-(ρ , q)= ίχ Ι-(ρ. α) β (Μ a χ (Ρι 〇) + χ · S 〇2-(Ρ, 〇)) χ · S G2-(4) } /Max tPiQ) ...(16- B) Χ2-(ρ< d = { Χ2-(ιμ) · (Μ a χ (Ρι¢) + χ · S G2-(p.〇)) one; C · s G2-(p.钐X 3- (p. q}= (X3-(p,g) * (Max(IM> + x · SG2-(p,(0) -X * SG2-(p,q) } /U a X (p, Q , ...(16-C) Referring to Figure 4, the input to the first, second, and third sub-pixels is shown in [1]. Note that SG2-(P,q) = SGup, q). Further, the 値 obtained by subtracting the fourth sub-pixel output signal from the input 至 to the first, second, and third sub-units is shown in [2]. The output signals of the first, second, and third subpixels of the equations (16-Α), (16-B), and (16-C) are shown in [3]. The axis of the abscissa in Figure 4 Brightness, and the luminance BNio of the first, second, and third sub-pixels is represented by 2n-1, and the luminance BN when the fourth sub-pixel is added. 3+BN4 is (X+l) X (2n-l) is indicated.

S -54- 201137841 In the following, calculate the output signals of the (p, q)th pixel Px(P, q) 値Xl-(p, q), X2-(p, q), X3-(p , q), and X4-(p, q) methods. Note that the following procedure is performed to maintain the luminance of the first primary color displayed by (first subpixel + fourth subpixel) in each pixel, by (second subpixel + fourth subpixel) The ratio between the luminance of the second primary color displayed and the luminance of the third primary color displayed by (the third subpixel + the fourth subpixel). Also, the following procedure is performed to maintain or maintain the hue as far as possible. In addition, the following procedure is performed to maintain or maintain the level-luminance characteristic, that is, the gamma characteristic or the T characteristic. Step 1 0 0 First, the signal processing area 20 calculates the first for each of the plural pixels according to the sub-pixel input signal to the pixel according to the following expressions (1-1-A1) and (1-1-B1). The four subpixels control the second signal 値 SG2-(P, q> and the fourth subpixel control the first signal 値SG, -(P, q>. This procedure is performed for all pixels. Further 'according to the following formula (3-A1) Calculate the signal 値X4_(p, .s G2-(pq)=M i η (Ρ;α) i η (PtQ<) + SG (4))/2 (3-A,) Χ4-( ρ. (〇=(SG2-(p,q> Step 1 10 Next, the signal processing area 20 is based on the above equations (16-A), (16-B)' and (16-C) from each picture The fourth subpixel output signal 値X4-(p, q) calculated by the element calculates the output signals 値Χηρ,q), X2.(p, q), -55-201137841, and X3-(p,q). Note that for each 彳I, the ratio of the output signal ^^1- (p,q) : X2-(p,q丨:X3-(p,q> is proportional to the input signal 値

Xl-(p,q) : X2-(p,q) · ^3-(p,q) There is a slight difference. If you look at each pixel separately, the hue of the pixels will be different with respect to the input signal. However, when viewing each pixel as a pixel, the color of the pixels will not cause problems. The same applies to the following instructions. In the driving method of the image display device of the first exemplary embodiment or the driving method of the image display device combination, the signal processing area 20 is based on the fourth sub-pixel calculated from the first, second, and third sub-pixel input signals. Controlling the second signal 値 SG2. (P, q) and the fourth sub-pixel control first signal 値 SG calculated from the first, second, and third sub-pixel input signals to the adjacent pixels! (p, q> calculating the fourth sub-pixel output signal. Here, since the fourth sub-pixel output signal is calculated by taking the input signal to the adjacent pixel into consideration, the output signal to the fourth sub-pixel is realized. Optimization, and positively achieving an increase in luminance can also anticipate improvement in display quality. For example, assume that the first, second, and third subpixel input signals shown in Table 2 below are input to (p, q) pixels and (p, q-1) pixels, next to the (p, q)th pixel, and the (P, q-2)th (p, Q-3) ' and the (p, q + Ι) pixels. When calculating according to the expression (3-A) to the configuration (p, q-2) pixels, the first (p, q- Ι) a single pixel, the first (p, q ) a single pixel, and each of the (P, q+Ι) pixels

The result of the fourth sub-pixel output signal of the fourth sub-pixel of S-56-201137841 at this time is not in Table 2. Note that the increase in luminance of the second pixel derived from the constant meaning is ignored in the calculation. Meanwhile, an example similarly indicated by using the equation (17) to calculate the fourth sub-pixel output signal 値X4.(P, q) in place of the equation (3-A) is the reference example 1 in Table 2. X 4 ( ( ( ( ( ( ( ( ( ( ( P,q) (P,q+1) Χι 0 0 255 255 255 X2 0 0 255 255 255 X3 0 0 255 255 255 Output signal 値 Feasible example 1 X4 0 127 255 255 Comparison example 1 X4 0 255 255 255 From the table 2, the difference between the fourth sub-pixel output signal 第 of the (ρ, q)th pixel and the fourth sub-pixel output signal 第 of the (P, q-Ι) pixel is compared in the feasible example 1 It is smaller in the comparison example 1. If the fourth sub-pixel output signal 第 of the (P, q)th pixel is significantly different from the fourth sub-pixel output signal 第 of the (P, q-Ι) pixels, the fourth sub-picture The luminance of the element is high and the visibility is deteriorated. For example, if you assume the input signal 所示 shown in Figure 20A of -57-201137841, the original image should be visible to the naked eye so that one of the pixels in column (b) is displayed. The black line clip extends between the two white lines extending in the horizontal direction and displayed by the pixel strips in the (a)th column and the (c)th column. Note that "R", "G", "B", and "W" in Figure 20A represent the first, second, third, and fourth sub-pixels, respectively, and the number in each ()値 represents the output signal 値. However, since the luminance of the fourth sub-pixel is actually high, the black line has a varying width as seen by the naked eye (refer to Fig. 20B). Because, in the feasible example 1, the difference between the fourth sub-pixel output signal 第 of the (P, q)th pixel and the fourth sub-pixel output signal 第 of the (P, q-Ι) pixel is reduced. It is less likely to observe the phenomenon just described. Feasible Example 2 Feasible Example 2 is a modification of the possible example 1 but with respect to the 1st B mode. In the feasible example 2, where t is a constant depending on the image display device 1〇, the signal processing region 20 calculates the saturation S in the HSV color space expanded by adding the fourth color as a variable. The maximum luminance 値Vmax(s), and the signal processing region 20 (a) calculates the saturation S and the luminance V(S) of the complex pixel according to the sub-pixel input signal to the complex pixel, (b) at least according to One of the Vmax (S)/V(S) calculated by the complex pixel calculates the expansion coefficient α ο, and •58- 201137841 (C) based on at least the first sub-pixel input signal, that is, the first prime input The signal 値XHP,q), and the fourth sub-pixel control the second signal, the signal 値3(}2·^, and the expansion coefficient and the constant % calculate the first sub-pixel output signal of the pixel), That is, the first sub-pixel input signal 値Xwp, q); at least according to the second sub-pixel input signal, that is, the second sub-input signal 値Χ2·(Ρ, q), and the fourth sub-pixel Controlling the second signal, also the signal 値 SG 2 - ( p, q ), and the expansion coefficient α 〇 and the constant X to calculate the first pixel output signal, that is, the second sub The output signal 値χ2_(ρ, and at least the third sub-pixel input signal, that is, the third sub-input signal 値X^p, q>, and the fourth sub-pixel control second signal, also signal 値Sg2_(p,q>, and the expansion coefficient α 〇 and constant Z calculate the first pixel output signal, that is, the third subpixel output signal 値Χ3_(ρ, note 'after step (C) above, based on The expansion coefficient α reduces the luminance of the surface light source device. For each image display frame, the expansion α 0 0 is expressed by S(P, q) indicating the saturation of the (ρ, q)th pixel and Μ Μ Luminance, where s(p, q,) indicates that the saturation of adjacent pixels V(p, q') indicates its brightness, which can be expressed by the following equations (21_A) 21-B), (21-C), And (21-D) means that they are: sub-pictures are (p, q, the output of the letter is the two, q), the prime input, the three sub-q) °, the flatness factor of 3 V (p, and by -59-201137841 S(P,Q) = (Max(p>a)-M in(P(Q)) /Maxjp.a) .. (21-A) V(p,q) =Max(P>Q) . .. (21-B) S (p, (Π = (M x (p.〇-M in (p,〇) /M ax (M,) ··· (21-C) V{p, Q- )=Max(p(ll*) ... (21-D) And in the feasible example 2, the fourth sub-pixel output signal 値Χ4·(Ρ, q) is calculated from the following (3 _ a,,). In particular, the fourth sub-pixel output signal 値X 4 - ( p , q ) is calculated by the arithmetic mechanism. Note that in the equation (3 - A ''), although the division is included on the right side, the expression is not limited to this. X4-(pq)= (S G2-(Pq) + S Gi-(Pi(1)) (2χ). (3-α") Note that the fourth is calculated according to Min (ρ, q) and the expansion coefficient α g The sub-pixel controls the second signal 値 SG2-(P, q), and calculates the fourth sub-pixel control first signal 値 SG Hp according to Min (ρ, 0 and the expansion coefficient α 〇. In particular, according to the following formula (2-1-A) and (2·ι_Β) calculate the fourth sub-pixel control second signal 値 SG2-(P, q) and the fourth sub-pixel control first signal 値 SG^u, q). , noted that 'in feasible example 2, C2I = 1. S G2-(p,q) = C21 (M in (¢.3⁄4)) · 〇!〇...(2-ι-α) SGmp.q} = C21 (Min(p, „·)) · α〇门丄. At the same time, the first sub-pixel R is proposed by the following formulas (5-Α), ( 5-Β), ( 5-C ), The output signals 値Xi-(p,q), X2-(p,q), and χ3·(Ρ,ς) of the second sub-pixel G and the third sub-pixel are respectively proposed below. - β ··· (5-A) ... (5-B) ...(5-C) 201137841 X 卜(P, q} — 〇ί 0 * X 1- (ρ, q) ~~ X * SG 2- (ρ, <j) 2-ίρ, q) — * X2-(p, q) -5C · S G2-(p,q} ^3-(p, a) =〇!〇· X3~ (Ptq} —X * SG2-(P< Q) In the feasible example 2, the maximum luminance 値Vniax (S) (the S is added as a variable in the HSV color space in which the fourth color of the white is expanded) is stored in the signal processing area 20, otherwise the signal is The processing area 20 is calculated. In other words, the result of adding a color such as white is the dynamic range expansion of the luminance in the HSV color space. The following description is provided for this. In the (P, q)th pixel Px (p, < In the equation, 21 (21-B), (21-C), and (21-D) are input according to the first sub-pixel, that is, the input signal 値ΧΗρ, <〇, the second sub-pixel Input signal, input signal 値χ2·(ρ, 〇, and third sub-pixel input signal, input signal 値x3. (P, q) calculate the saturation of the HSV color space of the cylinder fq) and brightness V (p, q Here, the HSV color space of the cylinder is not in the middle, and the relationship between the saturation S and the brightness V is schematically shown. Note that in the 5B and 5D diagrams, the table "2" from "MAX_1" 1 値, and in the 5D diagram, the luminance (x( Z+1) 値 is represented by "MAX_2". The saturation S may have a enthalpy from 0 to 1, and V may have a enthalpy from 〇 to 2n-1. Fig. 5C is a view showing the HSV color space of the cylinder expanded by adding white or color in the feasible example 2, and the relationship between the schematic drawing S and the luminance V is shown in Fig. 5D. The color filter is not set for the fourth sub-display white. Including the saturation by the fourth color • A), the input signal number, also, that is, the mouth S (p, the 5A picture 5B shows the brightness 2n-l) and the brightness of the fourth picture shows the saturation picture Prime, -61 - 201137841 By the way, Vmax (s) can be expressed by the following equation. In the case of s S So,

Vmax (S) = ( χ +1) · ( 2η-1 ) Meanwhile, in the case of SQ < SS 1, vmax (S) = ( 2n - l ) · (1/S )

So = \!{χ +1) The maximum 値Vmax (S) of the brightness obtained in this way and using the saturation S in the expanded HSV color space as a variable is stored as a lookup table into the signal processing area 20 or per The calculation is performed by the signal processing area 20. It is noted that the image display device and the image display device combination in any of the possible examples 3 to 6 in the possible example 2 or described later may be similar to those described above in connection with the feasible example 1, except for the difference in the driving circuit. The difference in the configuration of the pixels, and some other differences. In particular, the image display device 10 of the second embodiment further includes an image display panel and a signal processing area 20. Meanwhile, the image display device combination of the feasible example 2 includes the image display device 1 and the planar light source device for illuminating the image display device 1 (in particular, the image display panel) from the rear side. The processing area 20 and the planar light source device 50 can be similar to the signal processing region 20 and the planar light source device 50 in the above description of the feasible example 1, respectively. This also applies to the possible examples described later. Step 200 First, the signal processing area 20 calculates the saturation S and the luminance v(s) of the complex pixel based on the sub-pixel input signal -62-201137841 to the complex pixel. In particular, the signal processing area 20 inputs from the equations (21-A), (21-B), and (2i_c) to the (P, q)th pixel Px (p, the input of the first sub-pixel input signal. The signal 値Xb (p, q), the input signal 値x2-(pi q) of the second sub-pixel input signal, and the input signal 値X3_(p, q) of the third sub-pixel input signal and to the (p) , q-1) a pixel's input signal 値Xb of the first sub-pixel input signal of the adjacent pixel PXb (P, the input signal of the second sub-pixel input signal 値X2-(P, q ·), and the input signal 値X3-(p> q.) of the third subpixel input signal respectively calculates the saturation S(p, q> and S(p, 〇 and luminance V(p, q) and V( p, q.). This procedure is performed for all pixels. According to this, S ( p,q ) ' S (P,q,), V(P,q), and V of the PX (Q - 1 ) group are obtained. (P, fl,) Step 2 1 0 Next, the signal processing area 20 calculates the expansion coefficient α 〇 based on at least one of Vmax (S) / v(s) calculated for the pixel. In particular, in the feasible example 2 In the signal processing area 20, it is judged that Vmax (S)/V(S) is calculated for all pixels (that is, Ρ〇XQ pixels). The minimum 値a min is used as the expansion coefficient α 〇. In particular, the signal processing area 20 calculates the 値 for all Ρ〇XQ pixels and determines the minimum 値 of these )) as the minimum 値a min = expansion coefficient ο: 0. It is noted that in FIGS. 6A and 6B, the relationship between the saturation S and the luminance V in the HSV color space of the cylinder expanded by adding the white or the fourth color in the feasible example 2 is schematically illustrated. , by "S«nin" indicating the saturation of the minimum 値a Wn saturation S, and by "vmin" -63-201137841 shows the brightness at this time, and is indicated by "Vmax (Smin)" at the saturation Smin Vmax (s). In addition, 'in Figure 6B' is indicated by a solid circle mark V(S), and the round hollow mark indicates V(S) χα<), and the triangular hollow mark indicates the saturation S of V ma X ( S ) ° Step 220 Next, the signal processing area 20 calculates the (P, q)th pixel according to the above equations (2·B A), (2-1-B), and (3-A',). Px(p,q) table four subpixel output signal 値Χ4·(Ρ, . Note that the fourth subpixel output signal is calculated for p X (Q·1) pixel ρχ(Ρ, q) Χ4·(ρ, q) ° can perform both step 210 and step 220. Step 2 3 0 Next, the signal processing area 20 calculates the first according to the input signal 値χ!·^, q), the expansion coefficient α〇, and the constant z ( P, q) pixels Px (p, <n first subpixel output signal 値X^p,. Further, the signal processing area 20 calculates the (p, q)th pixel Ρχ (ρ, the first sub-pixel output ίδ number according to the input signal 値Χ2·(ρ, q), the expansion coefficient α〇, and the constant χ Χ: 2·(ρ,q>' and calculate the (p, q)th pixel Px(P,q) according to the input signal 値Χ3·(Ρ,Ο, expansion coefficient 〇:〇, and constantχ The three subpixel output signals 値X3.(p, q). Note that step 2 2 0 and step 2 3 0 may be performed simultaneously, or step 220 may be performed after step 2 3 0. In particular, the 'signal processing area 20 is respectively based on The above-mentioned equations (5-A), (5·Β), and (5-C) calculate the (P, q) pixels Px(p, q) β -64 - 201137841 Output 値Xl-( p, q), X2-<p, q), and X3-(p, q). Figure 7 shows the HSV color space of the related art before adding the fourth color or white in the feasible example 2, by adding An example of the relationship between the fourth color or the white and expanded HSV color space, and the saturation s of the input signal and the brightness V. In addition, FIG. 7 illustrates the related art before adding the fourth color or white in the feasible example 2. HSV color space, by adding a fourth An example of the relationship between the saturation s and the brightness V of the output signal in the color or white and the HSV color space in the state in which the expansion program is applied. Note that although the axes of the abscissas in Figures 7 and 8 The 値 of the upper saturation S is originally maintained in the range from 0 to 1, and is represented in the form of multiplication by 2 5 5 in the 7th and 8th drawings. What is important here is the first sub-pixel. The luminance of R, the second sub-pixel G, and the third sub-pixel B is expanded by the expansion coefficient α , as shown in the equations (5-A), (5-Β), and (5-C). Since the luminances of the first sub-pixel R, the second sub-pixel G, and the third sub-pixel are expanded by the expansion coefficient α〇 in this manner, not only the white display sub-pixel (ie, the fourth sub-pixel) The luminance increases, but the luminance of the red display sub-pixel, the green display sub-pixel, and the blue display sub-pixel (that is, the 'first, second, and third sub-pixels') also increases. The problem of preventing darkening of the color occurs, in particular, compared to the luminance of the first sub-pixel R, the second sub-pixel G, and the third sub-pixel Alternatively, the luminance of the entire image is increased by α 〇. According to this, for example, a still pattern or the like can be desirably displayed with high luminance. It is assumed that at ί = 1_5 and 2η - 1 = 2 5 5 In the case, the input of -65-201137841 in Table 3 below is taken as the input ίθ of xl-(p, q), χ2·(ρ, q), and X3-(p, q). SG2.(P, q)= SGhp,q). In addition, the expansion coefficient α 〇 is set to the enthalpy listed in Table 3. Table 3 Χΐ-(ρ,α)-2 =2 4 0 ^ 2- (p, q) -2 — 2 5〇X 3~ (p, q) -2 _ 16 0 M ax (pu)-2= 2 5 5 M in (p, 〇)-2= 16 0 S (p, Q) -2 = 0. 3 7 3 V (p, Q)-2 =255

Vmax (S) = 6 3 8 a〇 = 1. 5 9 2 For example, according to the input signal 所示 shown in Table 3, in the case of considering the expansion coefficient α〇, according to the input signal (X|-(p) , c〇, X2_(p, q), x3-(P, q)) = (240, 255, 160) will display the luminance 値, according to the 8-bit display, the luminance of the first sub-pixel 値 = 〇·Χι-(Ρ/ς) = 1.592 X 240 = 382 . . . (22-Α) The luminance of the second subpixel 値=〇i〇.X2-(P,q) = 1.592 X 255 = 406 . . . (22-B) The luminance of the third sub-pixel 値=〇ί〇·Χ3-(ρ,ς) = 1.592 X 160 = 255 . . . (22-C) The luminance of the fourth sub-pixel 値=α〇·Χ4-(Ρ#ς) = 1.592 X 160 = 255 . . . (22-D) According to this, the first subpixel output signal 値Xhp, q), the second subpixel output signal 値X2 (p, q), third subpixel output signal 値X3-(P, q), pp. -66-201137841 Four subpixel output signal 値x 4 · (p, q > becomes as follows.

Xl-(p,q)= =382 - 255 = 127 X2-(p,q)= =406 - 255 = 151 X3-(p,q)= =255 - 255 = 0 (p,q)= =255 /X = 170 In this way, the output signals 値XHP,q), X2-(P, q) and Χ3.(Ρ, q) of the first, second, and third sub-pixels become lower than the original requirements. Hey. In the driving method of the image display device combination or the image display device combination of the feasible example 2, the output signals of the (p, q)th pixel group PG(p, q) are 値Xl-(p, q), Χ2· (Ρ,q>, X3-(P,q), and Χ4·(ρ,q) swell to α 〇 times. Therefore, in order to obtain image luminance equal to the image luminance in the non-expanded state, the expansion coefficient should be based on 〇 The luminance of the planar light source device 50 is reduced. In particular, the luminance of the planar light source device 50 should be set to ΐ/α() times. Thereby, the power consumption of the planar light source device can be expected to be reduced. The driving method of the image display device of 2 and the expansion program of the driving method of the image display device combination. Fig. 9 is a schematic diagram showing the input signal 値 and the output signal 値. Referring to Fig. 9, the indication is obtained in [1]. :min is the input signal 第一 of the first, second, and third sub-pixels of one group. At the same time, the expansion operation is indicated in [2], that is, by calculating the input signal 値 and the expansion coefficient α c The input signal 膨胀 that is expanded by the operation of the product. In addition, the expansion is indicated in [3]. After the output signal 値 'that is, ' obtains the state of the output signals 値Xi (p, q), X2. (p, q), Χ3-(Ρ, q), and Χ4·(ρ, q). In the example shown in Fig. 9, the maximum luminance that can be achieved is obtained by the second sub-pixel. -67- 201137841 Note that since each pixel group is 'first and second pixels' Ratio of output signal 値

Xl-(p,q) · ^2-(p,q) · ^3-(p#q) ratio to input signal 値

Xl-(P,q) : X2-(p,q> : x3-<p,q> There are a few differences. If you watch each pixel group separately, the color tone related to the input signal pixel group will be Some differences occur. However, when viewing each pixel group as a pixel group, the hue of the pixel group does not cause a problem. Possible Example 3 Possible Example 3 is a modification of the second possible example 2. For a planar light source device, although a direct type planar light source device of the related art can be employed, in a possible example 3, a partition-driven (ie, partially driven) planar light source device 150 is employed as described below, as in FIG. It is noted that the expansion procedure itself can be similar to that described above in connection with the possible example 2. The partition-driven planar light source device 150 is formed from the SXT planar light source unit 152, assuming that the image display panel 130 of the color liquid crystal display device is configured The display area 131 is divided into an SXT virtual display area unit 132, and the SXT planar light source unit 152 corresponds to the display area unit 132. The light-emitting state of the SXT-plane light source unit 152 is individually controlled. Referring to FIG. 1, a color liquid crystal display The image display panel 130 includes a display area 131 in which a total of PG XQ pixels are arranged in a two-dimensional matrix, including a Ρο pixel set along the first direction and a middle direction along the second side 3 -68-201137841 Here, it is assumed that the display area 131 is divided into S χ Τ virtual display area units 132. Each display area unit 132 includes a plurality of pixels. In particular, if the image display resolution conforms to the HD-TV standard and is Ρ〇, Q ) indicates the number of pixels arranged in the two-dimensional matrix, and the number of pixels is (1 920, 1080). In addition, configure the pixels that are self-aligned in the two-dimensional matrix and use Figure 10 The display area 131 indicated by the alternate long and short dashed lines is divided into SX Τ virtual display area units 132, and the boundary between them is indicated by a broken line. The 値 of (S, Τ) is, for example, (1 9,12). However, The simplified illustration, the number of display area units 132 in Fig. 10, and also the planar light source unit 152 described hereinafter, differs from this. Each display area unit 132 includes a plurality of pixels and configures a display area unit. The number of pixels in 132 is, for example Generally, the image display panel 130 is driven by a line sequence. In detail, the image display panel 130 has a scan electrode extending along the first direction and a data electrode extending along the second direction. So that they cross each other like a matrix. The scan signal is input from the scan circuit to the scan electrode to select and scan the scan electrode, and the data signal or the output signal is input from the signal output circuit to the data electrode, so that the image display panel 1 3 0 is based on the data signal. The image is displayed to form a screen image. The direct type planar light source device or backlight 150 includes an SX Τ planar light source unit 152 corresponding to the SX Τ display area unit 132, and the planar light source unit 152 illuminates the corresponding display area from the rear side Unit 1 32. The light source disposed in the planar light source unit 152 is individually controlled. It is noted that although the planar light source device 150 is positioned below the image display panel 130, in Fig. 10, the image display panel 130 and the planar light source device 150 are shown separated from each other. -69- 201137841 When the display area 131 of the pixel self-aligned in the two-dimensional matrix is divided into the SXT display area unit 13 2 , if it is represented by "column" and "row", this state can be regarded as the display area 1 3 1 is divided into display area units 1 3 2 set in the X column of the T column. In addition, although the display area unit 13 2 is configured from a complex number (M〇XN〇) pixel, if the status is represented by "column" and "row", the display area unit 132 can be regarded as a configuration self-set in the N column. The pixels in XM's execution. The arrangement array state of the planar light source unit 152 and the planar light source device 150 is shown in FIG. Each of the light sources is formed from a light-emitting diode 1 53 driven by a pulse width modulation (PWM) control method. The increase or decrease in the luminance of the planar light source unit 152 is performed by increasing or decreasing the duty ratio control of the pulse width modulation control of the light-emitting diode 153 constituting the planar light source unit 152. The illumination light emitted from the light-emitting diode 153 passes through the light diffusion plate from the planar light source unit 152 and continues through the optical function sheet group (including the light diffusion sheet, the cymbal sheet, and the polarization conversion sheet (all not shown)) until it The rear side illuminates the image display panel 130. A photo sensor for the photodiode 67 is disposed in each of the planar light source units 152. The photodiode 67 measures the luminance and chromaticity of the light-emitting diode 153. Referring to FIGS. 10 and 11, the planar light source device control unit of the planar light source unit 152 is controlled according to the planar light source device control signal or driving signal from the signal processing region 20. 160 performs on/off control of the light-emitting diode 153 of each of the planar light source units 1 52. The planar light source device control circuit 160 includes a calculation circuit 61, a storage device or memory 62, an LED drive circuit 63, an optical diode control circuit 64, a switching element 65 formed from the FET, and is constant

S -70- 201137841 Current source LED driving power supply 6 6 . The circuit elements of the configuration planar light source device control circuit 160 can be known circuit components. The light-emitting state of each of the light-emitting diodes 153 in a specific image display frame is measured by the corresponding photodiode 67, and the output of the photodiode 67 is input to the photodiode control circuit 64 by The photodiode control circuit 64 and the calculation circuit 61 are converted into data or signals indicating the luminance and chromaticity of the LEDs 53. The data is sent to the LED drive circuit 63, whereby the data can be used to control the illumination state of the LEDs 153 in the next image display frame. In this way, a feedback mechanism is formed. A resistor r for current detection is inserted in series to the light-emitting diode 1 5 3 downstream of the light-emitting diode 1 5 3, and a current flowing through the resistor r is converted into a voltage. Next, the operation of the light-emitting diode driving power source 66 is controlled under the control of the LED driving circuit 63 so that the voltage drop across the resistor r can assume a predetermined threshold. Although Fig. 11 shows that a light-emitting diode driving power source 66 is provided to serve as a constant current source, the light-emitting diode driving power source 66 is actually provided to drive the individual of the light-emitting diode 153. It is noted that three planar light source units 152 are shown in Fig. 11. Although FIG. 11 shows a configuration in which one light-emitting diode 153 is disposed in one planar light source unit 152, the number of the light-emitting diodes 153 configuring the planar light source unit 152 is not limited to one. Each pixel group is configured from four seed pixels, including the first, second, third, and fourth sub-pixels described above. Here, the luminance control (i.e., level control) of each sub-pixel is performed by 8-bit control to control the luminance to be in the 28 level of 255. Further, the 値PS of the pulse width modulation output -71 - 201137841 signal for controlling the illumination period of each of the light-emitting diodes 153 of each of the planar light source units 152 is among 28 levels of 0 to 25 5 . However, the level of 'luminance is not limited thereto, and luminance control can be performed, for example, by 10 bit control to control the luminance to a 2IQ level of 〇1,023. In this example, the representation of the number of octets 可 can be, for example, multiplied by four. The following definitions apply to the light transmission factor (also referred to as the digital aperture) Lt of the sub-pixel, the luminance y corresponding to a portion of the display area of the sub-pixel (ie, the display luminance), and the planar light source unit 1 5 2 The luminance Y (i.e., the luminance of the light source). Y 1 : For example, the maximum luminance of the luminance of the light source, and this luminance is sometimes referred to as the first specified 値 of the luminance of the light source.

Lh: For example, the light transmission factor of the sub-pixel of the display area unit 132 or the maximum aperture of the number aperture, and this is sometimes referred to as the light transmission factor.

Lt2: when it is assumed that the supply corresponds to the display area unit signal maximum 値XmaX-(S, t) which is an output signal of the signal processing area 20 input to the image display panel drive circuit 40 to drive all the sub-pixels of the display area unit 132 The maximum 値) control signal to the sub-pixel, the transmission factor of the sub-pixel or the number of apertures, and this is sometimes referred to as the second specified 光 of the light transmission factor. Note that the transmission factor second specified Lt2値 satisfies 0 S Lt2 ^ Lt 1 . Y2: display luminance obtained when the luminance of the light source is assumed to be the first specified 値γ of the light transmission factor, and the light transmission factor or the number of apertures of the subpixel is the second specified 値Lt2 of the light transmission factor, and the display luminance is sometimes thereafter It is called the second specified 辉 of the display luminance.

S -72- 201137841 Υ2: When it is assumed that the supply corresponds to the display area unit signal maximum 値Xmax-(s, t> control Β 至 to sub-pixels' and the light transmission factor or number of sub-pixels assumed to be at this time When the aperture is corrected to the light transmission factor first designation ^1^!, the luminance of the sub-pixel is equal to the luminance of the light source of the planar light source unit 152 for displaying the luminance second designation 値 y22. However, the light source of each planar light source unit 152 can be used. The effect of luminance on the luminance of the light source of any other planar light source unit 152 is taken into consideration to correct the luminance of the light source Υ 2. When the planar light source device is partially driven or partitioned, the control configuration corresponding to the display area unit 132 is controlled by the planar light source device control circuit 160. The luminance of the light-emitting element of the planar light source unit 152 is such that when it is assumed that the supply signal corresponding to the display area unit signal 値Xlliax.(s, η control signal to the sub-pixel is obtained, the light transmission factor is first specified 値Lni The luminance of the sub-pixels, that is, the second luminance y2 of the luminance is displayed. In particular, for example, the luminance Y2 of the light source can be controlled (for example, reduced) to be transparent in the sub-pixels. When the emission factor or the number of apertures is set to, for example, the light transmission factor first designation 値Lt ^, the display luminance D can be obtained. In particular, the light source luminance Y2 of the frame control plane light source unit 152 can be displayed for each image, for example, to satisfy The following equation (a) is noted. Note that the source luminance Y2 and the source luminance first specified 値Y have a relationship of Y2 $ Υ 1. This control is schematically illustrated in the 1 3 Α and 1 3 。 diagrams. Y2 Lt | = Yi -Lt2 (A) In order to individually control the sub-pixels, an output signal 値Xhp,q>, X^p £〇 for controlling the light transmission factor Lt of the individual sub-pixels is transmitted from the signal processing area 20. , X3-(p, q), and Χ4·(ρ, to the image display panel drive circuit 40. In the image display panel drive circuit 40 of -73-201137841, a control signal is generated from the output signal and supplied or output to the sub-pixel Then, according to one of the control signals, the driver switches the switching element of each sub-pixel and supplies the desired voltage to the transparent first electrode and the transparent second electrode (not shown) of the configuration liquid crystal cell to control the sub-pixel. Light transmission factor Lt or number 値 aperture. Here, when the control signal As the size increases, the light transmission factor Lt or the number of apertures of the sub-pixel increases, and the luminance (ie, the display luminance y) corresponding to a portion of the display region of the sub-pixel increases. In particular, the self-passing sub-pixel is configured. And the image of the type of the dot is very bright. In the image control of the image display panel 130, the display brightness is displayed for each image display frame, for each display area unit, and for each planar light source unit. And control of the light source luminance Y2. Further, the operation of the image display panel 130 in an image display frame is synchronized with the operation of the planar light source device 150. Note that the number of image information (ie, the number of images per second) sent to the driving circuit as an electrical signal within one second is the frame frequency or frame rate, and the reciprocal of the frame frequency is the frame time, and the unit is second. In the feasible example 2, the expansion input signal is expanded for all the pixels according to an expansion coefficient to obtain an expansion procedure of the output signal. On the other hand, in the feasible example 3, an expansion coefficient α is calculated for each of the S X Τ display area units 132. ‘And for each display area unit! 3 2 Based on the calculated expansion coefficient 〇; 〇 expansion procedure. Then, at the (s, t) plane light source corresponding to the (s, t)th display area unit 132 (the determined expansion coefficient is 〇: Q.(s, t))

In S-74-201137841, element 152, the luminance of the light source is set to i/α 〇. Alternatively, the luminance of the light source corresponding to the planar light source unit 152 of each display area unit 132 is controlled by the planar light source device control circuit 160 so that when the supply corresponding to the display area unit signal is assumed to be the maximum 値Xmax-(s, t (which is the input to drive the maximum chirp in the output signal 値 of the signal processing region 20 of all sub-pixels of each display area unit 133). The transmission factor first specifies the luminance of the sub-pixel of 値Lti', that is, the luminance second designation 値y2 is displayed. Specifically, for example, 'the light source luminance Y2 can be controlled (e.g., reduced) so that the display luminance y2 can be obtained when the light transmission factor or the number aperture of the sub-pixel is set to, for example, the light transmission factor first designation ^. In other words, the light source luminance γ2 of the frame control plane light source unit 1 52 can be displayed, especially for each image, to satisfy, for example, the above-mentioned proposed equation (Α). Incidentally, in the case of the planar light source device 150, in the case of assuming that the luminance control of the planar light source unit 125 is, for example, (s, t) = (1, 1), there will be a necessity to source the light source from other SXT planes. The impact of 152 was taken into account. Since the influence of the other planar light source unit 152 on the planar light source unit 152 is known in advance from the light emission curve of each planar light source unit 152, the difference can be calculated by inverse calculation, and thus the correction is made feasible. A basic form of calculation is explained below. The luminance required by the s X T plane source unit 1 52 (i.e., the source luminance γ2) is not determined by the matrix [LpXQ] according to the requirement of the equation (a). Further, regarding the S X Τ planar light source unit 152, it is judged in advance that the luminance of the planar light source unit is obtained when only the specific planar light source unit is driven while the other planar light source unit is not driven. The luminance in this example is represented by a matrix [L > Q]. Further, the correction coefficient is represented by a matrix [a pXQ]. Therefore, the relationship between the matrices can be expressed by the following equation (B - 1). The matrix [Cl pXQ] of the correction coefficient can be determined in advance. [Lpxq] = [L*pxq]· [apxq] · · · (B-1) Therefore, the matrix [L'pxQ] can be judged from the equation (B-1). The matrix [L'pxq] can be judged by the calculation of the inverse matrix. In particular, it is possible to calculate [L5pxq] = [ L p X q ] · [ α p X q ] (Β-2) Next, the light source in each planar light source unit 152, that is, the light-emitting diode, can be controlled. 153, to obtain the luminance represented by the matrix [L'pi<Q]. In particular, such operations or procedures can be performed using information or data sheets stored in a storage device or memory 62 disposed in the planar light source device control circuit 160. Note that in the control of the light-emitting diode 153, since the [ of the matrix [I/p. Q] cannot be negative, it is a matter of course that the calculation result needs to be maintained in the positive region. Accordingly, the solution of equation (B-2) is sometimes an approximate solution rather than an exact solution. In this manner, as described above, it is judged based on the matrix [LpxQ] obtained from the 式(A) obtained by the planar light source device control circuit 160 and the matrix of the correction coefficient [〇: pXQ] when it is assumed that each plane is driven separately. a matrix [L'pxQ] of the light source unit, and converting the matrix [L>q] into a corresponding integer in the range of 〇25 to 25 according to the conversion table stored in the storage device 62, that is,

S-76-201137841, pulse width modulation output signal 値. In this manner, the calculation circuit 161 for configuring the planar light source device control circuit 160 can obtain a pulse width modulation output signal for controlling the illumination period of the light-emitting diode 153 of the planar light source unit 152. Then, the on-time t〇N and the off-time t〇FF of the light-emitting diode 153 of the planar light source unit 152 can be determined by the planar light source device control circuit 160 according to the pulse width modulation output signal. Note that: t〇N + t〇pF = solid 疋値 teonst In addition, the working ratio in the drive according to the pulse width modulation of the light-emitting diode can be expressed as follows: t〇N / ( t〇N + t〇FF) = t〇N / teonst Next, a signal corresponding to the turn-on time t〇N of the light-emitting diode 153 of the configuration plane light source unit 152 is sent to the LED drive circuit 63, and according to the corresponding turn-on time from the LED drive circuit 63 After the signal of t0N, the switching element 65 is controlled to the on state only during the on time t0N. Therefore, the L E D driving current from the light emitting diode driving power source 6 6 is supplied to the light emitting diode 1 53. As a result, each of the light-emitting diodes 1 5 3 emits light only for the turn-on time t0N within an image display frame. In this manner, each display area unit 1 3 2 is illuminated with a predetermined luminance. It is noted that the zone-driven or partially-driven planar light source device 150 described above in conjunction with the possible example 3 can also be applied to the feasible example 1. -77- 201137841 Feasible Example 4 Feasible Example 4 is also a modification of the possible example 2. In the possible example 4, the following image display device is used. In particular, the image display device of the feasible example 4 includes an image display panel, wherein the plurality of light-emitting element units UN for displaying the color image are arranged in a two-dimensional matrix, and the plurality of light-emitting element units are each configured to emit blue light corresponding to the first sub-pixel. a first illuminating element, a second illuminating element corresponding to the green light emission of the second subpixel, a third illuminating element corresponding to the red light emission of the third subpixel, and an emission corresponding to the fourth subpixel A fourth light-emitting element of white light. Here, the image display panel configuring the image display device of the possible example 4 can be, for example, an image display panel having the configuration and structure described below. It is noted that the number of light-emitting element units UN may depend on the specifications required for the image display device. In particular, the image display panel of the image display device of the feasible example 4 is a passive matrix or active matrix type direct visual color image display panel in which the illumination of the first, second, third, and fourth light-emitting elements is controlled/ The non-illuminated state makes it possible to directly visually view the light-emitting state of the light-emitting element to display an image. Alternatively, the image display panel is a passive image projection type or an active matrix projection type color image display panel, wherein the light-emitting/non-light-emitting states of the first, second, third, and fourth light-emitting elements are controlled such that the light is projected onto the screen Press to display the image. For example, Figure 14 shows a light-emitting component panel of a direct-visual color image display panel configured with an active matrix type. Referring to Fig. 14, the light-emitting element (i.e., the first sub-pixel) of the red light emission is indicated by "R": marked by "G"

S -78- 201137841 Light-emitting element for green light emission (ie, second sub-pixel): Light-emitting element (ie, third sub-pixel) with blue light emission indicated by "B": and marked by "W" A white light emitting element (ie, a fourth subpixel). Each of the light-emitting elements 210 is connected to the driver 233 at one of its electrodes (i.e., at the p-side electrode or the n-side electrode). This driver 233 is connected to the row driver 231 and the column driver 232. Each of the light-emitting elements 210 is connected to the ground line at the other electrode thereof (i.e., at the n-side electrode or the p-side electrode). Each of the light-emitting elements 210 between the light-emitting state and the non-light-emitting state is performed by the selection of the driver 2 3 3 of the column driver 2 3 2, and the luminance signal for driving each of the light-emitting elements 210 is supplied from the row driver 231 to the driver 233. a light-emitting element R (i.e., a first light-emitting element or a first sub-pixel) that emits red light by a driver 233, a light-emitting element G that emits green light (that is, a second light-emitting element or a second sub-pixel), The selection of any of the blue light emitting illuminating element Β (i.e., the third illuminating element or the third sub-pixel) and the white-emitting illuminating element W (i.e., the fourth illuminating element or the fourth sub-pixel). The light-emitting element R of the red light emission, the light-emitting element G of the green light emission, the light-emitting element 蓝光 emitted by the blue light, and the light-emitting and non-light-emitting state of the light-emitting element W emitting white light can be controlled by time division or simultaneously. It is noted that in the case where the image display device is of the direct vision type, the image is directly viewed, but in the case where the image display device is of the projection type, the image is projected onto the screen through the projection lens. It is noted that the image display panel configuring the image display apparatus described above is schematically shown in Fig. 15. In the case where the image display panel is a direct vision type, the image display panel is directly viewed, but in the case where the image display panel is a projection type, the image is projected from the display panel through the projection lens 203 to the -79-201137841 screen. Referring to FIG. 15, a light-emitting element panel 200 includes a substrate 211 formed from, for example, a printed circuit board, a light-emitting element 210 attached to the substrate 211, and an electrode electrically connected to one of the light-emitting elements 210 (eg, to a p-side electrode or an n-side electrode) And connected to the X-directional wiring 212 of the row driver 231 or the column driver 232, and the other electrode electrically connected to the light-emitting element 210 (such as to the η-side electrode or the ρ-side electrode) and connected to the column driver 2 3 2 or The Υ-direction wiring 213 of the row driver 2 3 1 further includes a transparent support member 214 covering the light-emitting element 210 and a micro-lens member 215 disposed on the transparent support member 214. Note that the configuration of the light-emitting element panel 200 is not limited to the above configuration. In a possible example 4, the first, second, third, and fourth illuminating elements can be obtained according to the expansion procedure described above with the feasible example 2 (ie, the first, second, third, and The output signal of the illumination state of the fourth sub-pixel. Then, if the image display device is driven in accordance with the output signal 所得 obtained by the expansion process, the luminance of the entire image display device can be increased to "〇 times. Alternatively, if the luminances of the first, second, third, and fourth light-emitting elements (ie, the first, second, third, and fourth sub-pixels) are controlled to 1 / α according to the output signal 値By double, the power consumption of the entire image display device can be reduced without causing deterioration in image quality. If desired, the first, second, third, and fourth illuminating elements (i.e., the first, second, third, and fourth) can be obtained by the procedure described above in conjunction with the possible example 1. Output signal of the illuminating state of the four sub-segment

S-80-201137841 Feasible Example 5 Possible Example 5 A driving method of a video display device according to a second embodiment of the present invention and a driving method of the image display device according to the second embodiment of the present invention. Feasible example 5 is particularly relevant to the 2A mode. Similar to the image display device described above with reference to Fig. 2, the image display device 10 of the possible example 5 includes an image display panel 30 and a signal processing region 20. Meanwhile, the image display device combination of the feasible example 5 includes the image display device 1 and the planar light source device 50 that illuminates the image display device 1 (particularly, the image display panel 30) from the rear side. The image display panel 30 includes a total of PXQ pixel groups arranged in a two-dimensional matrix, including a P pixel group arranged in a first direction (such as a horizontal direction) and a Q arranged in a second direction (such as a vertical direction). Pixel group. Note that in the case where the number of pixels configuring a pixel group is Pc, P. = 2 ° In particular, it can be seen from the pixel configuration of the 16th or 17th figure that in the image display panel 30 in the feasible example 5, each pixel group includes the first pixel pXl along the first direction and The second pixel PX2. The first pixel Pxi includes a first sub-pixel labeled "R" for displaying a first primary color (such as red), a second sub-pixel labeled "G" for displaying a second primary color (such as green), and a display. The third primary color (such as blue) is marked as the third sub-pixel of "B". Meanwhile, the second pixel Px2 includes a second sub-pixel G displaying the first sub-pixel of the first primary color, a second primary color, and a fourth sub-pixel W displaying the fourth color (e.g., white). Note that in the first 16 and 17 diagrams, 'the first, second, and third sub-pixels of the first pixel PX1 are configured by the solid line', and the second pixel Px2 is configured by the polyline. The first, second, and fourth sub-pixels. In detail, 81 - 201137841, in the first pixel PXl*, the first sub-pixel R of the first primary color, the second sub-pixel G of the second primary color, and the third sub-primary B of the third primary color are displayed. Arranged in the first direction. Meanwhile, in the second pixel Px2, the first sub-pixel R displaying the primary color, the second sub-pixel G displaying the second primary color, and the fourth sub-pixel W displaying the fourth color are arranged in the first direction. The second sub-pixel B of the first pixel is configured and the first sub-pixel of the second pixel Px2 is positioned adjacent to each other. At the same time, the fourth sub-pixel of the second pixel Ρχ2 and the first pixel 组态 configured in the pixel group next to the pixel group are configured, and one of the sub-pixels R is positioned adjacent to each other. It is noted that the sub-pixel has a rectangular shape such that its long side extends in parallel with the second direction and its short side extends in parallel with the first direction. In the example shown in Fig. 16, the first pixel and the second pixel are adjacent to each other along the second direction. In this example, configuring a sub-pixel of the first pixel and configuring the first sub-pixel of the second pixel may be disposed adjacent to each other along the second direction or may not be disposed adjacent to each other. Similarly, the second sub-pixel of the first picture and the second sub-picture of the second picture can be arranged adjacent to each other along the second direction or not adjacent to each other. Similarly, the third sub-pixel configuring the first pixel and the fourth sub-pixel configuring the second pixel may be disposed adjacent to each other in two directions or may not be disposed adjacent to each other. On the other hand, in the example shown in Fig. 17, the first pixel and the other pixel are disposed adjacent to each other along the second direction, and the second pixel and the other second pixel are disposed to each other. And in this example, the first sub-pixel configuring the first pixel and the first sub-pixel of the second pixel of the group may be disposed adjacent to each other along the second direction or not adjacent to each other. Similarly, configuring the second sub-pixel display of the first pixel and :R W and setting the first mutual prime side in the first neighbor state

S -82- 201137841 The second sub-pixels configuring the second pixels may be arranged adjacent to each other along the second direction or may not be arranged adjacent to each other. Similarly, the third sub-pixel configuring the first pixel and the fourth sub-pixel configuring the second pixel may be disposed adjacent to each other along the second direction or may not be disposed adjacent to each other. In the feasible example 5, the third sub-pixel is formed to display a blue sub-pixel. This is because the visual sensitivity of blue is almost 1/6 of that of green, and even if the number of sub-pixels displaying blue is reduced to one-half of the pixel group, there is no obvious problem. Is legacy processing area 2 0 (1) at least according to the first pixel? The first sub-pixel input signal of the ^ is determined to the first pixel Px, the first sub-pixel output signal, and outputs the determined first sub-pixel output signal to the first sub-pixel of the first pixel Ρχι R; (2) determining, according to at least the second sub-pixel input signal to the first pixel Ρχι, the second sub-pixel output signal to the first pixel pXl2, and outputting the determined second sub-pixel output signal to The second sub-pixel of the first pixel Ρχι G » (3) determines the first sub-pixel output signal 'to the second pixel Px2' based on at least the first sub-pixel input signal to the second pixel pX2 and outputs The first sub-pixel output signal that has been determined is output to the first sub-pixel R of the second pixel ;2; (4) the second pixel Px2i is determined according to at least the second sub-pixel input signal to the second pixel Ρχ2 The second sub-pixel output signal 'and outputs the determined second sub-pixel output signal to the second sub-pixel G of the second pixel Ρχ2. Here, in the feasible example 5, -83-201137841 on the configuration of the (p, q)th painting 'prime group PG(p,q) (where P, lSqSQ) the first pixel Px(p, q The -i' signal processing area 20 receives the signal having the χ, -ίρ, «η-, the first sub-pixel input signal having the X2-(p, q)-! a sub-pixel input signal, and a third sub-pixel input signal having a signal of X3.(p, q)., and, regarding the configuration of the (p, q)th pixel group pG(P, q) the second pixel Px(p,q)-2, the signal processing area 2〇 receives the signal input to it with MU, q)-2, the first sub-pixel input signal 'has X2-(p , q).2, the second sub-pixel input signal of the signal 以及 and the third sub-pixel input signal of the signal X with X3.(p, q).2. In addition, in the feasible example 5, regarding the configuration of the first pixel of the (p, q) pixel group pg(p, q>(ρ, <〇·!, signal processing area 20 output judgment The first sub-pixel output signal of the signal 値 of the sub-pixel R having the display level of x^p, q).i, and the display level of the second sub-pixel G having the signal of X2. (p, 値) The second sub-pixel output signal, and the third sub-pixel output signal of the signal 値 having the display level of the third sub-pixel B having X3. (p, 。. Further, regarding the configuration (p, q) The second pixel Px of the pixel group PG(p, .q) (p, cn-2, the signal processing area 20 outputs X^p, q)-2 for determining the display level of the first sub-pixel R The first sub-pixel output signal of the signal,

S -84- 201137841 Judging that the display level of the second sub-pixel G has Χ2·(the second sub-pixel output signal of the signal 値 of ρ, ·2) and the display level of the fourth sub-pixel W have X3_ (p, q) · 4th sub-pixel output signal of signal ° In addition, with respect to adjacent pixels positioned next to the (p, q)th second pixel, signal processing area 20 receives input thereto The first sub-pixel input signal having the signal of Xl-(P, q,) has a second sub-pixel input signal of X2_(p, the signal 値, and a third sub-picture with a signal of 〇 In addition, in the feasible example 5, the signal processing area 20 is based on the (p, q)th second pixel Px(p, q)-2 when counting along the second direction, where P The fourth sub-pixel is 1, 2, ..., P and q is 2, 3, ..., Q, and the second sub-pixel controls the second signal (that is, the fourth sub-pixel controls the second signal 値 SG2-(P, q) And the fourth sub-pixel of the adjacent pixel to the second pixel Ρχ(ρ, ο)·2 controls the first signal (that is, the fourth sub-pixel controls the first signal 値SG,·^, q)) to determine the fourth sub-pixel output letter (ie, the fourth subpixel output signal 値X4.(P, q).2). Next, the signal processing area 20 outputs the judged fourth subpixel output signal to the (p, q)th second. The fourth sub-pixel of the pixel. Here, the input signal from the first sub-pixel (ie, the first sub-pixel input signal 値Xl-(p, q)-2) and the second sub-pixel input signal ( That is, the second sub-pixel input {曰号値X2-(p,q)-2), and the second sub-pixel input signal (that is, the second sub-pixel input signal 値X3-(p, q)-2 Determining that the fourth sub-pixel controls the second signal (ie, the fourth sub-pixel controls the second signal 値 SG2. (p, q)). Further, from the second pixel to the second pixel PX (in the second direction) P-, q)-2 adjacent pixel -85-201137841 A sub-pixel input signal (that is, the first sub-pixel input signal 値Χ, ^ρ, q.), the second sub-pixel The input signal (ie, the second subpixel input signal 値x2-(p, q,))' and the third subpixel input signal (ie, the third subpixel input signal 値X3_(P, q·)) It is judged that the fourth sub-pixel controls the first signal (that is, the fourth sub-pixel controls the first signal 値 SGhp, q)). Furthermore, the 'signal processing area 20 is based at least on the third sub-pixel input signal to the (p, q)th second pixel Px(p, q)·2 (ie, the third sub-pixel input signal 値X3. (p, q)·2) and to the third (p, q) first pixel of the first subpixel input signal (ie, the 'third subpixel input signal 値Χ3·(ρ, )) to determine the third Subpixel output signal (ie, third subpixel output signal 値X 3 · ( p,q )-丨). Note that in feasible example 5, the (p, q )th second pixel will be The adjacent picture next to Ρχ(ρ, ς)·2 is expressed as the (P, q-Ι) pixel. This also applies to other possible examples described later. However, adjacent pixels are not limited to this. , but may be the (P, q+Ι) pixels or may be the (P, q-ι) pixels and the (P, q+O pixels. In the feasible example 5, In the 2A mode, in particular, the (P, q)th second pixel Px is obtained from Min (p, q).2 (P, < 4-2, the fourth sub-pixel control second signal 値 SG2. P, q). In addition, the fourth pixel adjacent to the (p, q)th second pixel Px(p, q).2 is obtained from Min (p, q,). The pixel controls the first signal 値SGhp, q>. In particular, the fourth sub-pixel control second signal 値 SG2 is calculated from the following equations (Bu 1 - A') and (1 -1 - B 1 ), respectively. (p, q) and the fourth subpixel control the first signal 値SGhp, q). However, in the feasible example 5, Cll = 1

S -86- 201137841. Further, the third sub-pixel control signal SG3-(P, q) is calculated from the following equation (1 - 1 - c,). It is noted that the second signal 値 SG2-(P, (8) and the fourth sub-pixel control the first signal 値SGu for the fourth sub-pixel control (p, 値, each of the 施加 or what can be applied By making a prototype of the image display device 10 or the image display device combination and evaluating the image, for example, by an image viewer, it is appropriately judged. in (pQ}-2 SG (p>q) in {P. S G3- (p. q) —Min (p, q) -i In addition, the fourth sub-pixel output signal 値χ4·(ρ X4-(p,q)-2 = (SG2-(p) can be calculated by the following , q) + SGi-(p,q) ) /2 ··· (4''A,) In other words, the fourth sub-pixel output signal 値X 4 - ( p , q ) - 2 is calculated by the arithmetic mechanism. At least according to the first sub-pixel input signal (that is, the first sub-pixel input signal 値xi-(p, q) -2), Max(p, q).2, Min(p, <〇· 2. The fourth sub-pixel controls the second signal (ie, the fourth sub-halogen controls the second signal 値 SG2-(P, q)) to calculate the (p, q)th second pixel Px(p, q) the first sub-pixel output signal of 2 (ie, the first sub-pixel output signal 値χ1Μρ, q)-2). The two subpixel input signals (ie, the first---subpixel input signal 値x2-(p,q) -2), Max(p, q)_2, Min(p. q) .2, and the fourth sub- The pixel controls the second signal (that is, the fourth subpixel controls the second signal 値 SG2-(P, q)) to calculate the (p, q)th second pixel Px(p,q)_2 -87- The second sub-pixel output signal of 201137841 (that is, the second sub-pixel output 傧 値X2-(ps q)-2). Here, in the feasible example 5, the first sub-pixel is calculated according to the following, in particular The output signal 値X^p, q>_2 [Χΐ-(ρ,φ-2,Max(p,q)_2, Min(p,q)-2, SG2- (p#q) / X ] is calculated according to the following Second subpixel output signal 値X2e(p,q).2 [x2-(p,q)-2/ MaX(p/q)_2, Min(P/q)-2/ SG2-(p,q ), χ] In addition, at least according to the first sub-pixel input signal (that is, the first sub-pixel input number 値Xl-(P, q) ·1), Max(p, q).i, Min(p , q) -1, and the third sub-pixel control signal (ie, the signal 値 SG3-(p, q)) calculates the (P, q) first pixel Ρχ (ρ, the first sub-pixel Output signal (that is, 'the first sub-pixel output signal 値X^P, in addition, at least according to the second sub-pixel Input signal (ie, second subpixel input signal 値X2.(p, q)-i), Max(p, qH, Min(p, q)·, and third subpixel control signal (also That is, the signal 値 SG3. (P, q)) calculates the second sub-pixel output signal (that is, the second sub-pixel output signal 値Χ2·(ρ, q).l). Here, in the feasible example 5, the first sub-pixel output signal 値X^p, [Xl-(p, q)-l, Max<p, q)-1, Min(p, q) is calculated in particular according to the following )-1, SG3. (p#q) , χ] Calculate the second subpixel output signal 値X2_(p,q>_i [X2-(p, q)-1, MaX q)-1, Min according to the following (p, q), SG3- (p, q) f )(] For example, 'hypothetical' about the second pixel Px of the pixel group PG(p,q)(p, (〇-2 ' will have the following The input signal of the input signal 之 of the relationship is input to the signal processing area 20, and the input signal of the input signal 具有 having the following relationship with each other is input to the signal processing area 2 关于 with respect to the adjacent pixels.

S -88- 201137841 ... (51-A) ...(51-B) ... (52-A) ... (52-B) χ 3- (p, q) -2&lt; X 卜 (p , g) X 2- (ρ, α) -2 χ2-(ρ. q'}<X3-(p,q.<X 卜{p, q. In this example, ^ ΐ n (pq) -2 — X 3 ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( SG 2 · (p, q}, and according to M in (p, q.}, judge the fourth sub-halogen to control the first signal 値 SG |. (P, q). In particular, the following equation can be used respectively (53 -A) and (53-B) calculate them. S G2-(p,q) =M i η (Ριή)_2 •·· (53-Α) ~ χ3- (ρ.α)-2 SG (ρ ,q) = Μ i η (p,q·) •·· (53—Β) ~χ2-(ρ,αΊ In addition, Χ4-(ρ.α)-2= (S 〇2-(Ρι(1) + S Gj-(p&gt;q)) /2 =(x3-(pq)-2+X2-(pQ·)) /2 ^ {54) By the way, 'about the input signal 依据 and the output signal according to the input signal The luminance of the output signal ' 'in order to satisfy the requirement of maintaining the chromaticity' must satisfy the following relationship. Note that the fourth sub-pixel output signal 値X4-(p,q]·2 is multiplied by χ because The fourth sub-picture is better than the other sub-pictures This is explained later. XI - Ip, q) -2/Μ ίΐ X q) -2 =(Xi-(p,q)-2+z * / (Max(M}-2+ X ♦ SG2-&lt;P. Mountain) ... (55-A) -89- 201137841 χ 2- &lt;p. 〇) -2/Μ ϊ ϊ X (p,q} -2 =(X2-(p , q)-2+X · SG2-(pg)) / (M a X (p,q)-2+ χ * S〇2-(p. a) ... (55-B) X 卜 (P&gt Ugly X (p, 〇}-l = (x Bu (P.qH+5C · SG3-(p, a&gt;) / (Max(p,fl&gt;-1+X · SG3-(p,q)) ...(55-C) X· 2+-(p. q卜l/M a X (3⁄4 g) -1 —(X2-ip.q)-i+X * SG3-(P,q)) / ( Ma x (P&gt;α)-ι+χ · SG3-(pq)) (55-D) X3-&lt;PQ)-i/Ma x (ρ,α)-ι =(X 3-( p.«)-!+Z * SG3-(P,q)) / (M ax (pQ)-i+χ · SG:hp, Q)) ... (55-E) X 3- (p. ¢) ~2·^^ 3. X (p, q) -2 =(X* 3-(pq)-2+X * SG2-(p,a)) / (M a X (P(fl)- 2+χ * SG2-(pq|) ... (55-F) According to this, the output signals are calculated from the equations (55-A) to (55-F) as follows:

Xl-{pa)-2= {X|-(p,q)-2* (M a X (p&gt;Q)-2+χ · SG2-(pq)) ^ /M ax (Piq)-2— χ * SGo-jp.q) ... (56-A)

X 2-“p· Q) TM2 a { X (p, q) _2 · to the parent (p, -2 + X * SG 2- {p, ft)) I /Max(p,Q)-2— χ · SG2-(pq) ... (56-B)

Xl~{p. q)-J—( X l-(pq)-l * (M a X (p, Q)-1+χ · SG3-(p,q)) } /Ma x (p,q )-i- % · S G3-(Pi„) ... (56-C) X2-(p. q)-1= (X2-(p,q)-i* (M a X (P&lt;( ])-1+X · SG3«{p, a)) } /M ax (p,Q)-i—χ * SG3-(P,q) ... (56-D) X3-(p,q&gt ;-I= (X 3-〇).&lt;i)-l + X' 3-{m)-2) /2 ... (56-E) where X 3Mp, αΜ = { X3-(p, iH * (M a X (p( Q).1+χ · SG3-(p, q))) /Μ 3. X (p( q) - X * SO 3- {p,(]) .. (56-a) X 3-(p. q)-2= {^3-(p, αί-2&quot; (M a X (Pjq)-9+z * SG2-(pq)) } /&quot; M ax (p, Q) -2- x · S G2-(p, 〇) ... (56-b) s -90- 201137841 In the following 'describes the calculation of the (p, q) pixel group Group PG (p, c〇 output signal 値Xl-(p, q).l, X2-(P, q)-l, X3-(P,q).i, Xb(p, W.2 X2-(P, &lt;0-2 and X4-(P, q)-2. Note that the 歹|J program is kept to be displayed by (first subpixel + fourth subpixel) The luminance of the first primary color and the ratio between the luminance of the second primary color displayed by (the second subpixel + the fourth subpixel). Also, the program is performed to maintain or maintain the color tone as far as possible. In addition, the program is performed to maintain or maintain the level-luminance characteristic, that is, the gamma characteristic or the r characteristic. Step 5 〇〇 First, the signal processing area 20 is respectively according to the following equation (1-1-A'), ( 1-1-B'), and (1-1-C') calculate the fourth sub-pixel control second signal 値 SG2-(P, q) according to the sub-pixel input signal of the one pixel group The four subpixels control the first signal 値SG Hp,q), and the control signal or the third subpixel control signal SG3Mp, q). This procedure is performed for all pixels. In addition, 'according to the equation (4-A') Calculate the signal 値X4-(P,q)-2°

... (1-1-BM ... (ll-CM S G2-(p,Q)=M in (p,q)-2 s Gi-fp.a)=M in (p, Q-) S G3-(pi π (p,¢)-1 ^4-(p, q)-2= (S G2-(p,q) + S Gl-(p,q)) /2 _ ( 4-Af) Step 5 1 0 Next, the signal processing area 20 determines from the above-mentioned equations (56_A) to (56-E), 56(a), and 56(b) for the pixel group. Four subpixel output signal 値X4-(P,〇)·2 calculates the output signal 値Χ|·(ρ,Μ·2 -91 - 201137841 , X2-(P,q)-2,Χΐ·(ρ,q )-l, X2-(p, q)-|, and X3-(P,q)-l. This operation is performed for all PXQ pixels. Note that due to the second painting in each pixel group The ratio of the output signal of the prime is ^l-(p,q)-2 * X2-(p»q)-2 ^Ι-ίρ,ςϊ-Ι · ^2-{p#q)-l · ^3- (p#q)~l ratio to input signal 値

Xl-(p,q)-2 · X2-(p,q)-2 ^l-(p,q)-l · ^2-(p,q)-l · ^3- (p# q) - 1 There is a difference. If you look at each δ element separately, the hue between the pixels will be different from the input signal. However, when the viewing pixel is a pixel group, the color of the pixel group does not cause a problem. The same applies to the same. In the driving method of the image display device or the driving method of the image display device combination of the fifth aspect, the signal processing area 20 is input according to the first sub-pixel input signal, the second sub-pixel input signal, and the third sub-pixel input. The fourth sub-pixel determined by the signal controls the second signal 値 SG2. (P, ^ and the fourth sub-pixel control first signal 値 SG^p, q) determines the fourth sub-pixel output signal and outputs the determined The fourth subpixel output signal. Here, since the fourth sub-pixel output signal is judged based on the first pixel ρ χ and the second pixel Px2 positioned adjacent to each other, the output signal to the fourth sub-pixel is optimized. Further, since a fourth sub-pixel is also provided for at least one pixel group configured from the first pixel PX1 and the second pixel Px2, the area reduction of the aperture area of the sub-pixel can be suppressed. As a result, the increase in luminance can be surely achieved and the display can be realized.

S 201137841 Quality improvement. Feasible Example 6 Feasible Example 6 is a modification of the possible example 5 and relates to the 2B mode. In the feasible example 6, where % is a constant depending on the image display device 10, the signal processing area 20 determines the maximum 値Vmax of the brightness when the saturation S in the HSV color space expanded by adding the fourth color is a variable (S), and the signal processing area 20 (a) calculates the saturation S and the luminance V(S) of the complex pixel according to the sub-pixel input signal to the complex pixel, (b) at least according to the complex pixel One of the calculated Vmax (S) / V (S) 计算 calculates the expansion coefficient α ο, and (c) according to the first sub-pixel input signal 値Xl_(p, q)_2, the expansion coefficient α〇, and the constant Z Calculating the first sub-pixel output signal 値X|.(p, q>.2 of the (p, q)th second pixel pX2, according to the second sub-pixel input signal 値X2.(p, q)- 2. The expansion coefficient (2 G, and the constant Z calculates the second sub-pixel output signal 値X2.(p, q)-2 of the second pixel PX2; and controls the second signal 値SG2- according to the fourth sub-pixel (p, q), the fourth sub-pixel controls the first signal 値 SG^p, q &gt;, the expansion coefficient α 〇, and the constant χ calculates the fourth sub-pixel output signal 値X4 of the second pixel Ρχ 2 (p , q).2. For An image display frame judges the expansion coefficient α 〇. Note that the fourth sub-pixel control second SG2- is calculated according to the formula -93-201137841 sub (2-1-A·) and (2-1·Β'), respectively. (P, q) and the fourth sub-pixel control the first signal 値 SGhp, q). , from the following equation (2_ 1-C'), the control signal 値 or the third sub-picture signal 値 SG3. (P, q). The signal is further controlled by s G2-(pq)= (M i η (ρ.α)-2) · α〇SGh(p,Q}=(Min(p,Q”)*〇!〇(Μ i η (PtQ)-|) · α〇 In addition, when S(p,..., and V(p, q)·! respectively represent the saturation and brightness of the (ρ, q)-pixel Pxi, and When S(p,q)_2&V(p represents the saturation and brightness of the (p,q)th second pixel Px2, respectively, they can be expressed by the following expressions (61-A) to (61-D). : Item » q ) · 2 S(nQ)-i= (M^ X (p.qj-1-M in (pQ)-i) /λίαχ^.^-, ... (61-A) V(p,Q)-i=Max(p(q).| (6i-B) S (p,q&gt;-2_ (M 3. X (pt q)-2_M 1 Π (p, q )-2) £1 X (p, q)-2 V (p.〇)-2=M ax (p,q}-2 (61-C) (61-D) In the feasible example 6, Calculate the fourth sub-signal from the following (4-A&quot;) 値X4- (P, (0.2. In particular, the fourth sub-output signal 値Xqp, q&gt;-2 is calculated by the arithmetic mechanism. Note that in the equation (4-A1'), the right side includes the division of X, but the expression is not limited thereto. X^*(p,q&gt;-2= (S d) + SG (p,〇)) / ( 2 χ) (4-A&quot;, 素素素, at the same time, by the following formula (5 -a) to (5-f) and (6

S -94- 201137841 Calculate the output signal of the first sub-pixel R, the second sub-pixel G, and the third sub-pixel B 値Xl-(p, q) — 2, Χ 2·(ρ' ' Xl-( P, &lt;〇·,,Χ2-(Ρ' Ο·1, and X3-(p, q)− 1 ° χν-(ρ.«)-1 = · X 卜{jxq卜1χ · S G3 -!P,q&gt; ··. (5-a) X2-(p,q)-1 =0:〇· Χ2-(ρ.α}-1^ Z * SG3-(p. a) ... (5_b) X 3-tp, (1)-1= 0!〇· X3-(p. a)-l~ % * SG3-(p, &lt;|) ... (5-c) X&gt;- (pq)-2 = Qi〇, X 卜(p,4)-2-5C · S G2-(p,W .. (5_d) X2-(p. q) -2 =〇!〇* X2-{ p, g) -2 -% * SG2-(p, a) (5_e) X 3-(d. (0-2= 〇!〇· X:j-(p. Q}-2—X · S 〇 2-(|Μ&gt; ·.. (5_f) X3-&lt;p.(〇-l = (X' :i~(Pn + X /2 ... (6_a,) is also in feasible example 6, with Similarly, in the feasible example 2, the maximum luminance 値Vmax (S) of the luminance (where the saturation S in the HSV color space expanded by adding the fourth color (white) is a variable) is stored in the signal processing region 20, or Each time is calculated by the signal processing area 20. In other words, by adding a fourth color (white), the dynamic range of the brightness in the HSV color space is expanded 〇 In the following, the calculation of the (p, q)th pixel group PG(p,q) is performed. The output number 値Xl-(p,q&gt;-2, X2-(p,q)-2, The method of Xl-(p, q).|, X2-(p, q&gt;-|, and X3-(p,q)-l', that is, the expansion procedure. Note that the procedure is performed to maintain or maintain the gradient - Luminance characteristics, that is, gamma characteristics or r characteristics. In addition, 'in the following procedure, the following procedure is performed on all of the first and second pixels', that is, on all pixel groups, as much as possible Remote-95-201137841 Maintain the ratio on the brightness. Also, perform the program to maintain or maintain the color tone as far as possible. Step 600 First, the 'signal processing area 20 calculates the saturation of the complex pixels based on the sub-pixel input signal to the complex pixel. Degree S and luminance V(S). In particular, signal processing region 20 is substantially identical to equations (21-A), (21-B) ' (21-C), and (21-D) ( That is, by substituting Max (p,q).2 and Min (p,q)·] for the equations (21-A), (21-B), (21-C), and (21-, respectively) The formula of ^Iax(p,q) and Min(p,q) in D) is based on the second (P, q) second painting Px(p, ς&gt;·2 the first sub-pixel input signal input signal 値q>.2, the second sub-pixel input signal input signal 値X2-(p, q^2, and the third sub-picture The input signal 値X3_(p, q).2 of the prime input signal and the input signal 値X3. (p, qj to the third sub-pixel input signal of the adjacent pixel respectively calculate the saturation s(p,. ., and s(p, q).2 and luminance v(p,..., and V(p,q).2. This procedure is performed for all pixels. Step 6 1 0 Next 'Signal processing area 20 is based at least on One of the Vmax (S) /V(S) 计算 calculated by the complex pixel group calculates the expansion coefficient α 〇. Especially in the feasible example 6, it is judged about all pixels (that is, all Ρ〇XQ pixels And the lowest or minimum 値a min of the calculated Vmax (S)/V(S) is used as the expansion coefficient α 〇. In particular, for all pixel groups (ie all PQ XQ pixel groups) Calculate the 値 of α (p,q) = Vma&gt; s -96- 201137841 (S)/V(p, q)(S) and judge the minimum 値 of a (p,q) as a min=expansion coefficient α 0 Step 6 2 0 Next, the signal processing area 20 calculates the (p, q)th picture from the above equation (2-1-Α') '(2_ 1-Β'), and (4-Α, '). The fourth sub-pixel output signal 値X4.(p, q)_2 of the prime group PG(P,q). Note that X4.(p,q) is calculated for all PXQ pixel groups PG(p,q). -2. Step 610 and step 6 2 0 can be performed simultaneously. Step 630 Next, the signal processing area 20 is based on the input signal 値X|-(P, q&gt; The coefficient α 〇, and a constant; t calculates the (p, q)th second pixel Px(p,q)_22 from the equations (5-a) to (5-f) and (6-a,) The sub-pixel output signal 値Χ, -ίρ, q) - 2. In addition, the signal processing area 20 calculates the second sub-portion based on the input signal 値X2-(P,q)-2, the expansion coefficient 〇:〇, and the constant %. The pixel output signal 値X2-(P, q)-2. Further, the signal processing area 20 calculates the (p, q)th according to the input signal 値X丨-(P, qH, the expansion coefficient α 〇, and the constant; t; The first pixel Px(p, q)-d first subpixel output signal 値X^p, q)-. Further, the signal processing region 20 is based on the input signal 値x2. (p, the expansion coefficient α〇, And the constant χ calculates the second sub-pixel output signal 値X2.(p, qM, and according to the input signal 値χ3.(ρ, .., and χ3-(ρ, q).2, expansion coefficient 〇:〇, And the constant Ζ calculates the third sub-pixel output signal 値x3-(p, . Note that step 620 and step 63 0 may be performed simultaneously, or step 620 may be performed after step 630. -97- 201137841 Also in feasible example 6 It is important that the luminance of the first sub-pixel R, the first sub-pixel G, and the third sub-pixel B are The expansion coefficient ^(•expansion' is as shown in the equations (5-a) to (5-f), and (6-a'). The first sub-pixel R and the second sub-sugar are expanded in this manner. In the case of the luminance of G, 'not only the white shows that the luminance of the sub-element (ie, the fourth sub-pixel) increases, but the red shows the sub-pixel and the green display sub-pixel (that is, the first and second sub-pictures) The brightness of the prime also increased. Therefore, it is possible to surely prevent the problem of color darkening. In particular, the luminance of the entire image is increased to α 〇 times as compared with the case where the luminance of the first sub-pixel R, the second sub-pixel G, and the third sub-pixel B is not expanded. In this way, according to the image display device combination of the feasible example 6 or the driving method thereof, the output of the (P, q) pixel group PG(p, q) {@号値Xl-(p,(| )·2, X2-(p,q)-2, Χ4·(ρ,q)-2, Xl-(p,q)-l, X 2 · ( p , q ) · 1 , and X 3 · ( p, q ) . 1 is expanded by a factor of 2. Therefore, in order to form an image having a luminance equal to the luminance of the image which is not in the expanded state, the luminance of the planar light source device 50 can be reduced according to the expansion coefficient 。: 尤其. 50 can be reduced by 1/α〇. Thereby, the power consumption of the planar light source device can be expected to be reduced. Note that the ratio of the output signals of the first and second pixels in each pixel group is

The ratio of Xl-(p,q)-2 * X2-(p#q)-2 to the input signal ^ ^l-(p,q)-2 · x2-(p#q)-2

Xl-(p,q)-l : X2-(p,q)-l : X3-(p,q)-l

S 98- 201137841 There is a difference. If you look at each pixel individually, the color tone between the pixels is related to the input signal. However, when viewing the pixels as a pixel group, the hue of the pixel group does not cause a problem. The same applies to the same. Although the present invention has been described above in connection with the preferred embodiments of the present invention, the present invention is not limited to the possible examples. The configuration, structure, and driving method of the color liquid crystal display device combination, the color liquid crystal display device, the planar light source device, and the planar light source unit described in the above examples are exemplary, and the components, materials, and the like are configured. It is illustrative and can be changed as appropriate. Meanwhile, in the feasible examples 2 and 6, the complex pixel, or a group of the first sub-pixel, the second sub-pixel, and the third sub-pixel, the saturation S and the brightness V(S) thereof should be The calculation is for all p X q pixels, or the first sub-pixel, the second sub-pixel, and the third sub-pixel of all groups, and the number of such pixels is not limited thereto. In particular, the complex pixels, or the first sub-pixel, the second sub-pixel, and the third sub-pixel of the group, the saturation S and the luminance V(S) thereof should be calculated 'for example, every four or Every eight is set to one. Meanwhile, in the feasible example 2 or 6, the expansion coefficient 〇: 计算 is calculated according to the first sub-pixel input signal, the second sub-pixel input signal, and the third sub-pixel input signal, which may alternatively be based on the first And the second, third, and third input signals are based on one of the sub-pixel input signals from the first, second, and third sub-pixels, or are based on the first, second, and third pictures One of the input signals is used to calculate. In particular, the input signal 値' as one of such input signals can be used, for example, for the green input signal 値X2_(p, q: or Χ2·(Ρ, q&gt;·2. Then, it can be similar to the feasible example The way of calculating the output signal 从 from the expansion coefficient α 已 calculated from -99- 201137841. Note that in this example, the saturation S(p, q) in the equation (21-C) and the like is not used. Or s(p, q)-2 ' can use "1" as the saturation S (p, q) or S (p, q> _2 値. In other words, the expression (21-C) and the like Min (p, "or Min (p, set to "0". Otherwise, depending on the input signal of the two different inputs of the first, second, and third subpixel inputs, or based on a set of first Two different input signals among the sub-pixel input signals of the second, third, and third sub-pixels, or two different from the first, second, and third pixel sub-pixel input signals The input signal is used to calculate the expansion coefficient. For example, the input signal 値xu&lt;P, &lt;0-2 for red and the input signal 値x2-(P for green) can be used. , q) - 2. Next, the output signal 値 is calculated from the calculated expansion coefficient α 〇 in a similar manner to the feasible example. Note that in this example, the equation (2 1-C ) is not used, ( S (Ρ, q), V (ρ, q), S (Ρ, q &gt; -2, and V (ρ, q). 2 in 21-D), . and the like, for example, as s (p , q), in the case of XHp, q) 2 X2-(P, q), S(p,q} = (Xl-(p,q) ** X2-(p,q) ) can be used) /x2-(p,q) V(P,q) = xl-(p,q) But in the case of Xl.(P, q) &lt; X2.(p, q) 'S(p, q) = (χ2-(p,q) — Xl-(p,q&gt; ) /χ2-(p,q) ^(p,q) = x2-(p#q) For example, on a color image display device In the case where a monochrome image is to be displayed, it is sufficient to perform the expansion procedure proposed by the above formula. Alternatively, a form may be employed such that the expansion procedure is performed within a range in which the viewer does not perceive the image quality variation. In particular, the disorder in the gradient of yellow with high visibility is obvious. According to this, 'preferably -100-

S 201137841 The expansion procedure so that the expanded output signal from an input signal with a particular hue (such as yellow) never exceeds Vmax. Alternatively, in the case where the rate of the input signal having a specific hue (e.g., yellow) is low, the expansion coefficient α 〇 may be set to be higher than the minimum chirp. An edge light type (i.e., side light type) planar light source device can also be used. In this example, as shown in FIG. 9, the light guide plate 510 formed of, for example, a polycarbonate resin has a first surface 511 which is a bottom surface, and a second surface 5 which is a top surface opposite to the first surface 511. 1 3, a first side surface 5 1 4 'the second side surface 5 1 5 , a third side surface 5 16 opposite the first side surface 5 1 4 , and a fourth side surface opposite to the second side surface 5 15 . One of the light guide plates 510 has a shape of a substantially wedge-shaped quadrangular pyramid shape, and two opposite faces of the cross-section quadrangular pyramid correspond to the first surface 511 and the second surface 513, and the bottom surface of the cross-sectional quadrangular pyramid corresponds to the first side surface 514. . Also. A concave convex portion 512 is provided on the surface portion of the first surface 511. When the light guide plate 510 is cut along a virtual plane extending into the first primary color light incident direction of the light guide plate 510 and perpendicular to the first surface 51 1 , the cross-sectional shape of the continuous concave-convex portions is a triangle. In other words, the concave-convex portion 512 provided on the surface portion of the first face 511 has a taper shape. The second face 513 of the light guide plate 510 may have a smooth shape, i.e., may be formed as a mirror surface, or may have a spray embossing effect which has a light diffusing effect, that is, may be formed as a finely roughened face. The light reflecting member 520 is disposed in a relationship opposed to the first face 511 of the light guide plate 510. Further, an image display panel, for example, a color liquid crystal display panel, is disposed in a relationship opposed to the second surface 5 1 3 of the light guide plate 510. Further, a light diffusion sheet 531 and a rib 5233 may be disposed between the image display panel and the second surface 5 1 3 of the light guide plate 51. The first primary color light emitted from the light source 500 enters the light guide plate 510 via the first side 514 of the light guide plate 510, which is the surface corresponding to the bottom surface of the pyramid of the cross section. Then, the first primary color light is shocked and scattered by the concave convex portion 512 of the first surface 511, and exits from the first surface 511, and is then reflected by the light reflecting member 520 and again enters the first surface 511. Thereafter, the first primary color light emerges from the second surface 513, passes through the light diffusion sheet 531 and the rib 532, and illuminates, for example, the image display panel of the feasible example 1. As the light source, a fluorescent lamp or a semiconductor laser which emits light as the first primary color can be used instead of the light-emitting diode. In this example, the wavelength λ of the first primary light corresponding to the first primary color (blue) emitted from the fluorescent lamp or the semiconductor laser may be, for example, 45 0 nm. Meanwhile, the green light-emitting particles corresponding to the second primary color luminescent particles excited by the fluorescent lamp or the semiconductor laser may be, for example, green light-emitting phosphor particles made of, for example, SrGa2S4: Eu. Further, the red light-emitting particles corresponding to the third primary color light-emitting particles may be, for example, red light-emitting phosphor particles made of, for example, CaS:E. Otherwise, when a semiconductor laser is used, the wavelength of the first primary light corresponding to the first primary color (blue) emitted from the fluorescent or semiconductor laser is again! It can be, for example, 45 7 nm. In this example, the green light-emitting particles corresponding to the second primary color luminescent particles excited by the semiconductor laser may be, for example, green light-emitting phosphor particles made of, for example, SrGa 2 S 4 : Eu, and corresponding to the third primary color luminescent particles. The red light emitting particles may be, for example, red light emitting phosphor particles made of, for example, CaS:E. Otherwise, a cold cathode type fluorescent lamp (CCFL), a hot cathode type fluorescent lamp (HCFL), an external electrode type fluorescent lamp (external electrode fluorescent lamp; EEFL) may be used. If the fourth subpixel controls the second signal値SG2.(p, q&gt; and fourth sub-pixel

S -102- 201137841 Controlling the relationship between the first signal 値 SG^p, q) deviates from a specific condition, and adjacent pixels can be changed in each feasible example. In particular, when the adjacent pixels are the (p, q-1)th pixels, they can be changed to the (P, q+1)th pixel or can be changed to the (p, q-Ι) pixels. And the (p, q + l) pixels. Otherwise, if the relationship between the second sub-pixel control second signal 値 SG2-(P, q) and the fourth sub-pixel control first signal 値 SG^p, q) deviates from a specific condition, then no Perform the operation of the program in each of the possible examples. For example, when the following procedure is to be performed, X4-(p,q)-2 = (SG2-(p,q) + SGl-(p&gt;q))/2 if |SG2-(p&gt;q) + SGhp , q) 値 値 becomes equal to or higher than or lower than the predetermined 値 △ X! ' can be used only according to SG2. (p, q) or can only be based on SG ^ pq) as a feasible example of each application X4_(p,q)_2値. Or 'if SG2-(p,q) + SGhp, q&gt; becomes equal to or higher than another predetermined 値△ X2 and if SG2-(p,q) + SGhp,q) becomes equal to or lower than Another predetermined 値ΔΧ3 can perform such an operation of a program different from each of the possible examples. If necessary, the array of pixel groups together with the feasible example 5 or 6 can be changed in a manner as described to perform the driving method of the image display device substantially as described above with the feasible example 5 or 6. The driving method of the image display panel combination. In particular, the driving method of the image display device shown in FIG. 18 can be employed. The image display device includes an image display panel in which a total of XQ pixels are arranged in a two-dimensional matrix, including Ρ arranged in the first direction. The pixel and the q pixel arranged in the second direction, and the letter-103-201137841 processing area® image display panel are configured from a plurality of first pixel lines including the first pixel arranged along the first direction, and Alternatingly and adjacently disposed adjacent to the first pixel and including a plurality of second pixels of the second pixel arranged along the first direction; the first pixel includes a first sub-pixel displaying the first primary color, and displaying the second a second sub-pixel of the primary color, and a third sub-pixel displaying the third primary color; the second pixel includes a first sub-pixel displaying the first primary color, a second sub-pixel displaying the second primary color, and displaying the fourth The fourth sub-pixel of the color; the signal processing area can: calculate the first sub-pixel output signal of the first pixel according to at least the first sub-pixel input signal and the expansion coefficient of the first pixel, and output the first Subpixel output signal to the first painting a first sub-pixel; calculating a second sub-pixel output signal of the first pixel according to at least a second sub-pixel input signal and an expansion coefficient to the first pixel, and outputting the second sub-pixel output signal to a second sub-pixel of the first pixel; calculating the first sub-pixel output signal to the second pixel according to at least the first sub-pixel input signal to the second pixel and the expansion coefficient “0”, and outputting the first The sub-pixel output signal to the first sub-pixel of the second pixel; the second sub-pixel output signal of the second pixel is calculated according to at least the second sub-pixel input signal to the second pixel and the expansion coefficient αο And outputting the second sub-pixel output signal to the second sub-pixel of the second pixel; the driving method includes the following steps performed by the signal processing area to be based on when the pixels are counted along the second direction (p, q)

S -104- 201137841 Second pixel, where p is 1, 2'...'p and q is 1, 2'..., q, the first subpixel input signal 'second subpixel input signal, and The third sub-pixel is calculated by the third sub-pixel input signal to control the second signal and the first sub-picture from the adjacent pixel positioned next to the (p, q)th second pixel along the second direction The fourth sub-pixel control first signal calculated by the prime input signal, the second sub-pixel input signal, and the third sub-pixel input signal calculates a fourth sub-pixel output signal, and outputs the calculated fourth sub-signal a pixel output signal to the (p, q)th second pixel; and further to at least a third subpixel input signal to the (p, q)th second pixel and to the (P, q)th The third sub-pixel input signal of the first pixel next to the two pixels calculates a third sub-pixel output signal, and outputs a third sub-pixel output signal to the (P, q)th first pixel. The present application contains the subject matter of the Japanese Priority Patent Application No. JP 20 1 0-0 1 7296, filed on Jan. While the invention has been described with respect to the preferred embodiments of the embodiments of the present invention, it is to be understood that the modifications and changes may be made without departing from the spirit and scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram showing the arrangement of pixels and pixel groups on the image display panel of the feasible example 1 of the present invention; FIG. 2 is a view showing the area of the image display device of the feasible example 1. Figure 3 is a circuit diagram of the image display panel and image of the image display device of Fig. 2 - 105-201137841, and FIG. 4 is a circuit diagram of the image display device of FIG. Diagram of input signal 値 and output signal ;; Figures 5A and 5B are HSV (hue, saturation, and lightness) color spaces of the cylinder schematically showing the relationship between saturation (S) and brightness (v) Diagrams and 5C and 5D are diagrams schematically showing the expanded HSV color space of the cylinder in the feasible example 2 of the present invention, schematically showing the relationship between saturation (S) and brightness (V); 6A and 6B are diagrams schematically showing the relationship between saturation (S) and brightness (V) in the HSV color space of a cylinder expanded by adding a fourth color of white in the feasible example 2. Figure 7 shows the addition of white in the feasible example 2 in the past. A diagram of the relationship between the HSV color space before the fourth color, the HSV color space expanded by adding the fourth color of white, and the saturation (S) and brightness (V) of an input signal; The HSV color space before the addition of the fourth color of white in the feasible example 2, the HSV color space expanded by adding the fourth color of white, and the saturation of one of the output signals in the expansion program (S FIG. 9 is a diagram schematically showing an input signal of the driving method of the image display device and the driving method of the image display device according to the feasible example 2 in the expansion process; FIG. 1 is a block diagram of an image display panel and a planar light source configured to combine the image display device according to the feasible example 3 of the present invention;

S-106-201137841 FIG. 1 is a block circuit diagram of a planar light source device control circuit of a planar light source device combined with the image display device of the third example; FIG. 1 is a schematic diagram showing the image display device combination of the feasible example 3. FIG. 13A and FIG. 13B are diagrams showing the state of increase or decrease of the luminance of the light source of the planar light source unit under the control of the control circuit of the planar light source device. Schematic diagram, so when it is assumed that the control signal corresponding to the maximum value of the display area unit signal is supplied to the sub-pixel, the second luminance of the display luminance can be obtained by the planar light source unit; FIG. 14 is a feasible example 4 of the present invention. An equivalent circuit diagram of the image display device; FIG. 15 is a schematic diagram of an image display panel constituting the image display device of the feasible example 4; FIGS. 1 6 '1, 7 and 18 are schematic diagrams showing the feasible example 5 of the present invention. The image display panel has a different arrangement of pixels and pixel groups; Figure 19 is a schematic diagram of the edge light type or side light type planar light source device: And Figs. 20A and 20B are diagrams showing the problem of the related art driving method of the image display device. [Description of main component symbols] 1 〇: Image display device 2 0: Signal processing area -107 201137841 3 0 : Image display panel 40 : Image display panel drive circuit 4 1 : Signal output circuit 42 : Scan circuit 5 0 : Planar light source Device 60: planar light source device control circuit 6 1 : calculation circuit 62 : storage device or memory 6 3 : LED drive circuit 64 : optical diode control circuit 6 5 : switching element 66 : LED driving power supply 67 : photodiode Body 1 3 0 : Image display panel 1 3 1 : Display area 1 3 2 : Display area unit 1 5 0 : Planar light source device 1 5 2 : Planar light source unit 153 : Light-emitting diode 160 : Planar light source device control circuit 200 : Light-emitting element panel 203 : Projection lens 2 1 0 : Light-emitting element 2 U : Substrate - 108 - 201137841 2 1 2 : X-directional wiring 213 : Y-directional wiring 2 1 4 : Transparent support 2 1 5 : Microlens member 2 3 1 : row driver 2 3 2 : column driver 2 3 3 : driver 500 : light source 5 1 0 : light guide plate 5 1 1 : first face 5 1 2 : concave one convex portion 513 : second surface 5 1 4 : first side 5 1 5 : second side 5 1 6 · third side 5 20 : light reflecting member 5 3 1 : Light diffuser 532 : ribs

Claims (1)

201137841 VII. Patent application scope: 1. A method for driving an image display device, the image display device comprising an image display panel, wherein a total of Ρο XQ〇 pixels are arranged in a two-dimensional matrix, including P〇 arranged in the first direction. a pixel and a Qo pixel arranged in the second direction, and a signal processing area; each of the pixels includes a first sub-pixel displaying the first primary color, and a second sub-pixel displaying the second primary color, And displaying a third sub-pixel of the third primary color and displaying a fourth sub-pixel of the fourth color; the signal processing area can: calculate each of the pixels according to the first sub-pixel input signal to the pixel a first sub-pixel output signal, and outputting the first sub-pixel output signal to the first sub-pixel: calculating a second to the pixel according to the second sub-pixel input signal to the pixel a sub-pixel output signal, and outputting the second sub-pixel output signal to the second sub-pixel; and calculating a third sub-pixel output to the pixel according to the third sub-pixel input signal to the pixel Signal and output the third a pixel output signal to the third sub-pixel, the driving method comprising the following steps further performed by the signal processing region: according to when counting the pixels along the second direction, to (p, q) a picture pixel 'where P is 1, 2, ..., P 〇 and q is 1, 2, ..., Qo, the first sub-pixel input signal 'the second sub-pixel input signal, and the third sub- The fourth sub-pixel calculated by the pixel input signal controls the second signal 'to S-110-201137841 and to the neighboring pixels positioned next to the (p, q)th pixel along the second direction The first sub-pixel input signal, the second sub-pixel input signal, and the fourth sub-pixel calculated by the third sub-pixel input signal control the first signal to calculate a fourth sub-pixel output signal, and output The calculated fourth sub-pixel output signal to the fourth sub-pixel of the (p, q)th pixel. 2. The driving method of the image display device according to claim 1, wherein the fourth sub-pixel control second signal 値 SG2. (P, q) is calculated according to Min(p, q), and according to Min ( p, q·) calculating a fourth sub-pixel control first signal 値 SG 1 - ( p , q ), where Min(p, q) is the first sub-pixel to the (p, q)th pixel a minimum 値 among the input signal, the second sub-pixel input signal, and the third sub-pixel input signal, and Min(p,q·) is the one to be positioned next to the (p, q)th pixel The smallest 之中 of the first subpixel input signal, the second subpixel input signal, and the third subpixel input signal of the adjacent pixels. 3. The method of driving an image display device according to claim 2, wherein f is a constant depending on the image display device, and the signal processing region calculates an HSV that is amplified by adding the fourth color. (Hue, Saturation, and Lightness) The saturation S in the color space is the maximum 値Vmax(S) of the luminance of the variable, and the signal processing region (a) is based on the sub-pixel input signals to the complex pixels 値Calculating the saturation 5 of the complex pixel and the brightness V(S) '(b) according to at least one of the defects from vmax(s)/v(s) calculated from the complex pixel値 Calculating the expansion coefficient α Q ' and -111 - 201137841 (C) calculating the first (p) based on at least the first sub-pixel input signal to the (p, q)th pixel and the expansion coefficient 〇: , q) the first sub-pixel output signal of the pixel, the second sub-pixel output signal is based on at least the second sub-pixel input signal and the expansion coefficient of the (p, q)th pixel Calculating, the third subpixel output signal is based at least on the third sub of the (p, q)th pixel The input signal and the expansion coefficient αο are calculated, and the saturation of the (P, q)th pixel and the brightness, wherein the saturation and the brightness are respectively from S ( p , q ) and V ( p , q ) Indicated, it is expressed as: S(p,q) -( Max (p, q) _ ΜΪΠ (p,q&gt; } /MaX (p, q) where Max(p, q) is included in the first ( p, q) the first pixel of the pixel - the subpixel input signal 値Xh(p,q), the second subpixel input signal 値X2.(pq), and the third subpixel input signal 値x3.(p , q) The maximum 値 of the three sub-pixel input signals 値, and Min (p, q) is the first sub-pixel input signal 値Xl. (including the (p, q)th pixel included. p, q), the second subpixel input signal 値Χ2·(ρ, q), and the minimum of the three subpixel input signals 値 of the third subpixel input signal 値Χ3·(ρ,q) 4. The driving method of the image display device according to claim 2, wherein Ch and Cl2 are constants, and the fourth sub-pixel output signal of the (P, q)th pixel is calculated by the following: X4-(p, q) X4-(p,q&gt; = (Cll'SG2-(p,q) + Ci2.SGi-(p,q))/(Cil + Ci2&gt; or From s -112- 201137841 X4-(p,q) = Cll· SG2-(p,q&gt; + Ci2· SGi-(p,q) otherwise by X4-(P/q) = Cu * (SG2-( p,q) - SGi_(P(q)) + Ci2 · SGi-(p#q) o 5 . A method of driving an image display device, the image display device comprising an image display panel, wherein a total of PXQ pixel groups Arranged in a two-dimensional matrix, comprising a group of P pixels arranged in a first direction and a group of Q pixels arranged in a second direction, and a signal processing area; each group of the pixel groups Configuring from a first pixel and a second pixel along the first direction; the first pixel includes a first sub-pixel displaying a first primary color, a second sub-pixel displaying a second primary color, and displaying a third sub-pixel of the third primary color; the second pixel includes a first sub-pixel displaying the first primary color, a second sub-pixel displaying the second primary color, and a fourth sub-pixel displaying the fourth color The signal processing area can: calculate a first sub-pixel output signal to the first pixel according to at least a first sub-pixel input signal to the first pixel, and output the first sub-pixel output Transmitting to the first sub-pixel of the first pixel; calculating a second sub-pixel output signal to the first pixel according to at least a second sub-pixel input signal to the first pixel, and outputting the The second subpixel output signal to the second subpixel of the first pixel; calculating the first subpixel of the second pixel according to at least the first subpixel input signal to the second pixel Outputting a signal, and outputting the first sub-pixel-113-201137841 output signal to the first sub-pixel of the second pixel; at least the second sub-pixel input signal to the second pixel a second sub-pixel output signal of the pixel, and outputting the second output signal to the second sub-pixel of the second pixel; the driving method includes the step of further performing by the signal processing area: When the second direction counts the pixels, to the second second pixel, wherein P is 1, 2, ..., P and q is 1, 2, .. the first sub-pixel input signal, the The second subpixel input signal is calculated by the third subpixel input signal to calculate the fourth subpixel control second and to The second sub-pixel input signal, the second sub-pixel input, and the third sub-pixel input signal are calculated by the second direction of the (p, q) pixel neighboring pixels. The fourth sub-picture control signal calculates a fourth sub-pixel output signal, and outputs the calculated pixel output signal to the fourth (p, q) second pixels: and further according to at least (p, q) the pixel input signal of the second pixel and the third input signal to the (p, q)th first pixel to calculate a third subpixel output signal 'and output the first output Signal to the third sub-pixel. 6. The image display device method of claim 5, wherein the first pixel and the second phase are positioned adjacent to each other along the second direction. 7. The image display device according to claim 5 of the patent application calculates the following sub-pixels (p, q, Q, and the signal, and the adjacent fourth signal sub-pixels) The driving method of the three sub-subjects of the three sub-pictures is driven by the method of the present invention, wherein the first pixels are positioned adjacent to each other and the second pixels are adjacent to each other along the second direction. 8. The method of driving an image display device according to claim 5, wherein the fourth sub-pixel control of the (p, q)th second pixel is obtained from Min(p,q)" The second signal 値 SG2. (P, q), and the fourth sub-pixel control of the adjacent pixel positioned next to the (p, q)th second pixel from Min(p, q·) The signal 値 SG^p,q), Min(p; q)_2 is the first sub-pixel input signal 値x^p,q).2, including to the (p, q)th second pixel. The minimum sub-pixel input signal 値X2.(P, q)-2, and the third sub-pixel input signal 値X3.(p, q).2 of the three sub-pixel input signals 値, and Min(p, 〇 is included in the position in the first ( p,q) a first subpixel input signal 该, a second subpixel input signal x2-(P, q·), and a third subpixel input signal of the adjacent pixel next to the second pixel The driving method of the image display device according to the eighth aspect of the invention, wherein: (21 and C22 are constants). The fourth sub-pixel output signal 値X4.(p, q).2 of the (p, q)th second pixel is calculated by the following: X4-(p,q)-2 = (.21 . SG2-(p,q&gt; + C22 · SGi-(p,q) ) / (C21 + C22); or by Xi-(p,q)-2 = C21 * SG2-(P,q) + C22 * SGi-(P(q); otherwise by X4-(p,q)-2 = C21. (SG2-(p,q&gt; - SGup'q) ) + C22 - SGi-(p, q) o -115 The method for driving an image display device according to claim 5, wherein f is a constant depending on the image display device, and is calculated by the signal processing region to be used by adding the fourth color The saturation S in the enlarged HSV (hue, saturation, and lightness) color space is the maximum 値vmax(s) of the brightness of the variable, and the signal processing area (a) calculating the saturation S of the complex pixel and the brightness V(S) according to the sub-pixel input signals to the complex pixels, (b) at least from the VmaJSVViS calculated according to the complex pixel One of the 値 of the 値 calculates the expansion coefficient α 〇, and (c) calculates the first according to the first sub-pixel input signal 値Xl_(p q>.2, the expansion coefficient αο, and the constant; t p, q) the first sub-pixel output signal 値ΧΗΡ, q)-2 of the second pixel, the second sub-pixel output signal 値x2_(p, q)-2 of the second pixel Calculating, according to the second subpixel input signal 値X2.(p, q)-2, the expansion coefficient α 〇, and the constant λ: the fourth subpixel output signal 値X4_(p of the second pixel , q).2, according to the fourth sub-pixel control second signal 値 SG2. (p, q), the fourth sub-pixel control first signal 値 SG ! · ( p, q ), expansion coefficient 0: 〇 'and the constant γ calculate the saturation of the (p, q)th first pixel and the brightness and the saturation of the (p, q)th second pixel and the brightness, wherein the first The saturation of the pixel and the brightness respectively Indicated by S(p, ...^, and the saturation of the first pixel and the brightness are indicated by S(P, ...^ and 乂...q) 2, respectively, and are expressed as: S -116 - 201137841 S( P/q)-i = (Max(P/q)-i - Min(P/q)-i)/ΜβΧίρ,ς)^! v(P,q) -i = Max (p,q)-i S(p,q)-2 = (Max (p, q),2 - Min (p, q) - 2 ) /Max (p, qx V(p#q)-2 = MaX(p,q)- 2 where Max^.q^i is the first sub-pixel input signal 値Xl_(p, q)-l included in the first (p, q) first picture, and the first sub-pixel input X2. (P , qH, and the third subpixel input signal 値Χ3·(Ρ, 値-丨, the maximum 値 among the three prime input signals Mi, Mi n(p, q)^ is included to (p, q) The first subpixel input signal 値X^p,q of the first pixel is the second subpixel input signal 値X2.(p, q, and the third subpixel input signal 値X3_(P, q). The minimum Max(p,...^ among the three subpixel input signals ! is the first prime input signal 値hU,q&gt;_2, second included in the second (p, q)th second pixel The maximum of the three sub-pixels of the sub-pixel input signal 値χ2·(ρ and the third sub-pixel input signal 値x3-(p, q)_2値' and Min(p,q).2 are the first subpixel input signal 値Xl_(p,q).2 and the first pixel input signal 値χ2·(including the second (the second) pixel. ρ,q&gt;_2, and the minimum 値 among the three sub-pixel input signals 値 of the third sub-pixel input signal 値. 1 1 · The image display device according to the scope of claim 2, wherein ' &lt;: 2, and c22 are constants, the fourth sub-picture of the qth second pixel is calculated by the following Prime output signal 値X4_(p, q&gt;2: X4-(P,q&gt;-2 = (C21.SG2Mp,q&gt; + C22.SGl_(pq&gt;)/(C21 + c22) or by prime number 値Subgraph the first)-1, input letter, sub-picture, q)-2 input letter P, q two sub-x 3 (P. drive (P, -117- 201137841 X4-(p,q)-2 = C21*SG2 -(p,q) + C22'SGi-{p,q&gt; Otherwise by (p, q)-2 - ren 21 · ( SG2-&lt;p, q) - SGi-(p,q) ) + C22 SG!-(p, q) 〇12. A method of driving a combination of image display devices, the image display device combination comprising '· (A) image display device including an image display panel, wherein a total of P〇XQ. Arranged in a two-dimensional matrix, including P〇 pixels arranged in a first direction and Qo pixels arranged in a second direction, and a signal processing region: and (B) a planar light source device for use from the rear side Illuminating the image display device; each of the pixels includes a first primary color display a sub-pixel, a second sub-pixel displaying the second primary color, and a third sub-pixel displaying the third primary color, and a fourth sub-pixel displaying the fourth color; the signal processing area can: according to the pixel The first subpixel input signal calculates a first subpixel output signal to each of the pixels, and outputs the first subpixel output signal to the first subpixel; according to the pixel The second subpixel input signal is calculated to the second subpixel output signal of the pixel, and outputs the second subpixel output signal to the second subpixel; and the third subchannel to the pixel The input signal is calculated to the third sub-pixel output signal of the pixel, and the third sub-pixel output signal is output to the -118-S 201137841 third sub-pixel, the driving method further comprising the signal processing area The following steps are performed: according to when counting the pixels along the second direction, to (p, q) pixels, where P is 1, 2, ..., P 〇 and q is 1, 2 ..., Q 〇, the first sub-pixel input signal, the second sub-pixel input signal And calculating, by the third subpixel input signal, the fourth subpixel control second signal, and the adjacent pixels positioned next to the (p, q)th pixel along the second direction The first sub-pixel input signal, the second sub-pixel input signal, and the fourth sub-pixel calculated by the third sub-pixel input signal control the first signal to calculate a fourth sub-pixel output signal, and output The calculated fourth sub-pixel output signal to the fourth sub-pixel of the (p, q)th pixel. A driving method of a combination of image display devices, the image display device combination comprising: (A) image display device comprising an image display panel, wherein a total of PXQ pixel groups are arranged in a two-dimensional matrix, including a P pixel group arranged in one direction and a Q pixel group arranged in the second direction, and a signal processing area; and (B) a planar light source device for illuminating the image display device from the rear side; Each of the groups of pixels is configured from a first pixel and a second pixel along the first direction; the first pixel includes a first sub-pixel displaying the first primary color, and a second display a second sub-pixel of the primary color, and a third sub-pixel displaying the third primary color; -119- 201137841 the second pixel includes a first sub-pixel displaying the first primary color and displaying the second primary color a sub-pixel, and a fourth sub-pixel displaying the fourth color ♦ the signal processing area can: calculate the first sub-picture to the first pixel according to at least the first sub-pixel input signal to the first pixel Output signal and output the first sub-pixel output signal Up to the first sub-pixel of the first pixel; calculating a second sub-pixel output signal to the first pixel according to at least a second sub-pixel input signal to the first pixel, and outputting the first The second subpixel output signal to the second subpixel of the first pixel; calculating the first subpixel output to the second pixel according to at least the first subpixel input signal to the second pixel And outputting the first sub-pixel output signal to the first sub-pixel of the second pixel; and calculating to the second pixel according to at least a second sub-pixel input signal to the second pixel a second sub-pixel output signal, and outputting the second sub-pixel output signal to the second sub-pixel of the second pixel; the driving method includes the following steps further performed by the signal processing area: When the pixels are counted along the second direction, to the (p, q)th second pixel, where p is 1, 2, ..., P and q is 1, 2, ..., Q, a fourth sub-pixel input signal, the second sub-pixel input signal, and a fourth sub-pixel input signal calculated fourth sub- The pixel controls the second signal, and the first sub-pixel input signal of the adjacent pixel positioned next to the (p, q)th pixel along the second direction, the second sub-pixel input The fourth sub-pixel controlled by the signal S-120-201137841 and the third sub-pixel input signal controls the first signal to calculate a fourth sub-pixel output signal, and outputs the calculated fourth sub-pixel output signal Up to the fourth sub-pixel of the (p, q)th second pixel: and further to at least the third sub-pixel input signal to the (p, q)th second pixel and to the (p) And q) the third sub-pixel input signal of the first pixel to calculate a third sub-pixel output signal, and output the third sub-pixel output signal to the third sub-pixel.